Consider the following statements regarding the Gulf of Mannar Biosphere Reserve:
1. It was the first marine biosphere reserve to be established in India.
2. The Marine National Park forms the core zone of this Biosphere Reserve.
3. It extends from Rameswaram island in the north to Kanyakumari in the south.
Which of the statements given above are correct?
- 1 and 3 only
- 1 and 2 only
- 2 and 3 only
- 1, 2 and 3
Explanation: All statements are correct. It was India's first marine biosphere reserve, its core is the 21-island Marine National Park, and it spans the coast from Rameswaram to Kanyakumari.
Consider the following statements regarding the Gulf of Mannar Biosphere Reserve:
1. It encompasses a unique chain of 21 islands stretching along the Tamil Nadu coastline.
2. The entire designated biosphere reserve area is strictly managed as a 'no-take' marine national park.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Statement 2 is incorrect. A Biosphere Reserve consists of core, buffer, and transition zones. Only the 21 islands and their immediate surrounding waters (the core zone) constitute the strict Marine National Park.
Consider the following pairs of Marine Protected Areas and their primarily associated flagship species:
1. Gahirmatha Sanctuary : Olive Ridley Turtle
2. Gulf of Mannar Park : Dugong
3. Gulf of Kutch Park : Saltwater Crocodile
Which of the pairs given above are correctly matched?
- 1 and 2 only
- 2 and 3 only
- 1 and 3 only
- 1, 2 and 3
Explanation: Pair 3 is incorrectly matched. Saltwater Crocodiles are not found in the Gulf of Kutch; they are prominent in the Bhitarkanika and Andaman coastal ecosystems.
Consider the following statements regarding the Gulf of Kutch Marine National Park:
1. It holds the distinction of being the first Marine National Park established in India.
2. The park's ecosystem is characterized primarily by fringing coral reefs and vast mudflats.
3. It is geographically located on the eastern coastline of the Indian peninsula.
Which of the statements given above are correct?
- 1, 2 and 3
- 1 and 3 only
- 1 and 2 only
- 2 and 3 only
Explanation: Statement 3 is incorrect. The Gulf of Kutch is located in the state of Gujarat, which is on the western coastline of the Indian peninsula, not the eastern coastline.
In which Marine Protected Area would you simultaneously find extensive mangrove forests, coral reefs, and a significant population of Saltwater Crocodiles?
- Gulf of Mannar Marine National Park
- Gulf of Kutch Marine National Park
- Malvan Marine Sanctuary
- Mahatma Gandhi Marine National Park
Explanation: Located in the Andamans, this park features a complex ecosystem of mangroves and corals, and it serves as a natural habitat for the Saltwater Crocodile.
With reference to the Coastal Regulation Zone (CRZ) rules, legally designated Marine National Parks are categorized under:
- CRZ-I B
- CRZ-II
- CRZ-IV
- CRZ-I A
Explanation: CRZ-I A covers highly ecologically sensitive areas, including National Parks, Marine Parks, Sanctuaries, coral reefs, and mangroves, where developmental activities are strictly prohibited.
Consider the following statements regarding the establishment of Marine National Parks in India:
1. They are declared under the provisions of the Environment (Protection) Act, 1986.
2. Once declared, all traditional fishing rights of local communities are automatically abolished within the core zone.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Statement 1 is incorrect; they are declared under the Wild Life (Protection) Act, 1972. Statement 2 is correct; unlike Sanctuaries, all human rights, including traditional fishing, are typically extinguished in the core of a National Park.
Consider the following statements regarding 'Seagrass Meadows' in marine protected areas:
1. They are true flowering plants that have adapted to live entirely submerged in saline waters.
2. They function as critical carbon sinks, often referred to as 'blue carbon' ecosystems.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Both statements are correct. Seagrasses are fully adapted marine angiosperms (flowering plants) and are incredibly efficient at capturing and storing atmospheric carbon in oceanic sediments.
Which of the following describes a crucial ecological function of the mangrove forests that directly border India's Marine National Parks?
- They increase water turbidity, which significantly promotes coral polyp growth.
- They trap terrestrial sediments and runoff, keeping the adjacent marine waters clear.
- They completely block oceanic tidal waves from reaching the deeper open ocean.
- They acidify the surrounding ocean water to naturally deter large marine predators.
Explanation: Mangrove root systems act as massive natural bio-filters, trapping sediment and pollutants from land runoff. This maintains the clear, sunlight-penetrated water that nearby coral reefs require to survive.
Under the Wild Life (Protection) Act, 1972, what is the primary legal distinction regarding human activities within a 'Marine National Park' as compared to a 'Marine Sanctuary'?
- All human rights and traditional extractions are typically extinguished in a National Park.
- National Parks permit traditional tribal fishing but ban all tourism completely.
- Sanctuaries explicitly allow deep-sea mining with central government approval.
- Commercial industrial fishing is allowed in both areas under strict central quotas.
Explanation: A National Park has a higher degree of strict protection under the WPA 1972, meaning that all rights of people within the park boundaries are vested in the government and extinguished, unlike in a Sanctuary.
Consider the following statements regarding 'Dugongs' found in Indian Marine National Parks:
1. They are recognized as the only strictly herbivorous marine mammals globally.
2. Their primary diet consists of deep-water seaweeds and benthic microalgae.
3. They are legally protected under Schedule I of the Wild Life (Protection) Act, 1972.
Which of the statements given above are correct?
- 2 and 3 only
- 1 and 2 only
- 1, 2 and 3
- 1 and 3 only
Explanation: Statement 2 is incorrect. The primary diet of the Dugong consists of seagrasses found in shallow coastal waters, not deep-water seaweeds or microalgae.
Consider the following statements regarding the nesting habits of Olive Ridley Turtles:
1. They exhibit a highly synchronized mass nesting behavior globally known as an 'Arribada'.
2. The Gahirmatha beach in Odisha is recognized as one of their largest global nesting sites.
3. They strictly nest during the peak daytime hours to ensure maximum solar incubation for the eggs.
Which of the statements given above are correct?
- 1, 2 and 3
- 1 and 2 only
- 1 and 3 only
- 2 and 3 only
Explanation: Statement 3 is incorrect. Sea turtles, including Olive Ridleys, predominantly emerge from the ocean to nest at night to avoid extreme daytime heat and diurnal predators.
Consider the following statements regarding the Gulf of Mannar Marine National Park:
1. It is located between India and Sri Lanka.
2. It consists of a chain of 21 islands and adjacent coral reefs.
3. It is the only marine national park in India where the Dugong is found.
Which of the statements given above are correct?
- 1 and 3 only
- 1, 2 and 3
- 1 and 2 only
- 2 and 3 only
Explanation: Statement 3 is incorrect. While the Gulf of Mannar is famous for Dugongs, they are also found in the Gulf of Kutch and the Andaman & Nicobar Islands.
The 'Palk Bay' region is often studied alongside the Gulf of Mannar for marine conservation. What physical feature separates the two?
- The Ten Degree Channel
- Adam's Bridge
- The Duncan Passage
- The Sundarbans Delta
Explanation: Adam's Bridge (Rama Setu), a chain of limestone shoals, acts as a physical barrier separating the Palk Bay to the north from the Gulf of Mannar to the south.
The Gulf of Kutch Marine National Park incorporates several islands. Which of the following is the most famous island within this park known for its extensive coral reefs?
- Pirotan Island
- Pamban Island
- Barren Island
- Havelock Island
Explanation: Pirotan Island is one of the 42 islands in the Gulf of Kutch Marine National Park and is widely known for its accessible coral reefs and diverse marine life.
Which of the following environmental threats is uniquely severe for the Gulf of Mannar Marine National Park compared to the Andaman marine parks?
- Illegal mining of coral reefs for the cement industry.
- Poaching of saltwater crocodiles for their skin.
- Extensive damage from the Crown-of-Thorns starfish.
- Volcanic eruptions and associated ash deposits.
Explanation: Historically, the Gulf of Mannar suffered heavily from the illegal mining of corals for use as raw material in the local cement and lime industries, a threat much less prevalent in the remote Andamans.
Consider the following statements regarding the 'Whale Shark' found in Indian waters:
1. It is categorized as a highly protected marine mammal listed in Schedule I of the WPA.
2. The coastal waters of Gujarat serve as a major global aggregation site for this species.
Which of the statements given above is/are correct?
- 2 only
- 1 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Statement 1 is incorrect because the Whale Shark is a fish (the largest living fish species), not a marine mammal, although it is indeed protected under Schedule I.
Which of the following states hosts the Malvan Marine Sanctuary, known for its rich coastal biodiversity and coral patches?
- Maharashtra
- Kerala
- Karnataka
- Goa
Explanation: The Malvan Marine Sanctuary is located in the Sindhudurg district of Maharashtra. It is one of the few designated marine sanctuaries on the western coast south of Gujarat.
Consider the following statements regarding the Rani Jhansi Marine National Park:
1. It is situated in the Bay of Bengal.
2. It was established primarily to protect the nesting sites of the Leatherback Sea Turtle.
3. It forms a part of the designated Great Nicobar Biosphere Reserve.
Which of the statements given above is/are correct?
- 1, 2 and 3
- 1 and 2 only
- 2 and 3 only
- 1 only
Explanation: Statement 2 is incorrect; while turtles are present, it is not primarily a Leatherback nesting site like Galathea. Statement 3 is incorrect; it is in Ritchie's Archipelago (Andamans), far north of the Great Nicobar Biosphere Reserve.
Which of the following is the primary environmental trigger for the 'coral bleaching' events frequently observed in India's Marine National Parks?
- The rapid accumulation of heavy metals from untreated industrial effluents.
- The uncontrolled spread of fungal infections within the limestone polyps.
- The expulsion of symbiotic zooxanthellae due to extreme thermal stress.
- The overpopulation and overgrazing of the Crown-of-Thorns starfish species.
Explanation: Coral bleaching is a stress response—most commonly to elevated sea surface temperatures—where corals expel the symbiotic algae (zooxanthellae) that provide them with food and color.
Which of the following river systems forms the primary estuarine ecosystem that supports the Gahirmatha Marine Sanctuary?
- The Narmada and Tapi rivers.
- The Mahanadi and Subarnarekha rivers.
- The Brahmani and Baitarani rivers.
- The Godavari and Krishna rivers.
Explanation: The Gahirmatha beach and the adjacent Bhitarkanika mangrove ecosystem are primarily formed by the deltaic network of the Brahmani and Baitarani rivers in Odisha.
Which Marine National Park features the 'Labyrinth Islands' and 'Twin Islands' within its protected boundaries?
- Rani Jhansi Marine National Park
- Gulf of Kutch Marine National Park
- Gulf of Mannar Marine National Park
- Mahatma Gandhi Marine National Park
Explanation: The Mahatma Gandhi Marine National Park in the Andamans encompasses 15 islands, including the deeply forested Labyrinth Islands and Twin Islands.
Consider the following statements regarding the Dugong (Sea Cow):
1. It is the only strictly herbivorous marine mammal.
2. In India, its habitat is entirely restricted to the Gulf of Mannar.
3. It relies heavily on underwater seagrass meadows for food.
Which of the statements given above are correct?
- 1, 2 and 3
- 2 and 3 only
- 1 and 3 only
- 1 and 2 only
Explanation: Statement 2 is incorrect. While the Gulf of Mannar has a significant population, Dugongs are also found in the Gulf of Kutch and the Andaman and Nicobar Islands.
Consider the following statements regarding the Malvan Marine Sanctuary:
1. It is located along the Konkan coast in the Sindhudurg district of Maharashtra.
2. It is globally recognized as the single largest nesting site for Leatherback sea turtles.
Which of the statements given above is/are correct?
- 2 only
- 1 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Statement 2 is incorrect. While Malvan is biologically diverse with coral patches, the largest nesting sites for Leatherback turtles in India are in the Andaman and Nicobar Islands (e.g., Galathea).
Which statutory body holds the primary mandate to review, approve, or reject the diversion of any territory from a legally designated Marine National Park for infrastructural development?
- The Coastal Zone Management Authority
- The Central Pollution Control Board
- The Animal Welfare Board of India
- The National Board for Wildlife
Explanation: Under the Wild Life (Protection) Act, any alteration of the boundaries of a National Park or Sanctuary, or diversion of its land, requires the explicit recommendation of the National Board for Wildlife (NBWL).
With reference to India's Marine Protected Areas, what is the primary ecological significance of 'Seagrass Meadows'?
- They act as crucial carbon sinks and are the primary diet of the Dugong.
- They provide the exclusive nesting grounds for Olive Ridley turtles.
- They are the primary source of commercial timber in coastal regions.
- They physically break down oceanic wave energy during tsunamis.
Explanation: Seagrass meadows are highly productive ecosystems, serving as massive carbon sinks (blue carbon) and providing the essential food source for the endangered Dugong.
The Coringa Wildlife Sanctuary, an extremely vital marine and estuarine protected area recognized for its extensive mangrove cover, is located in the deltaic region of the:
- Godavari River
- Mahanadi River
- Kaveri River
- Narmada River
Explanation: The Coringa Wildlife Sanctuary is located in Andhra Pradesh and forms a part of the Godavari river delta, hosting the second largest stretch of mangroves in India after the Sundarbans.
Which of the following marine organisms is globally known as a voracious predator of coral polyps and poses a significant ecological threat to the reefs in the Andaman Islands?
- The Crown-of-Thorns Starfish
- The Indo-Pacific Humpback Dolphin
- The Giant Clam
- The Green Sea Turtle
Explanation: The Crown-of-Thorns starfish feeds exclusively on live coral tissue. Periodic population outbreaks of this species cause devastating damage to coral reef ecosystems.
In the context of India's coastal geography and marine conservation, what physical feature acts as the geographical separator between the Palk Bay and the Gulf of Mannar?
- Adam's Bridge (Rama Setu)
- The Gulf of Khambhat
- The Duncan Passage
- The Ten Degree Channel
Explanation: Adam's Bridge, a chain of natural limestone shoals between Pamban Island (India) and Mannar Island (Sri Lanka), geographically divides the Palk Bay from the Gulf of Mannar.
The Indian Coast Guard conducts 'Operation Olivia' annually to protect which of the following species in a marine protected area?
- Olive Ridley Turtles in Gahirmatha
- Whale Sharks in the Gulf of Kutch
- Saltwater Crocodiles in the Andamans
- Dugongs in the Gulf of Mannar
Explanation: Operation Olivia is an annual mission by the Indian Coast Guard to ensure the safe mid-sea sojourn and nesting of Olive Ridley turtles along the Odisha coast.
Which of the following ecosystems is distinctly ABSENT in the Gulf of Kutch Marine National Park?
- Mangrove swamps
- Extensive mudflats
- Fringing coral reefs
- Tropical evergreen rainforests
Explanation: The Gulf of Kutch borders an arid, semi-desert region. While it contains mangroves, mudflats, and corals, it completely lacks tropical evergreen rainforests, which are characteristic of the Andaman marine parks.
Which of the following statements most accurately distinguishes 'Fringing Reefs' from 'Atolls' in the context of India's marine geography?
- Fringing reefs are exclusively found in Lakshadweep, while atolls are strictly found in the Gulf of Kutch.
- Fringing reefs are formed by volcanic ash deposits, while atolls are formed entirely by rapid tectonic uplifts.
- Fringing reefs are found in deep oceanic waters, while atolls are strictly found in shallow estuaries.
- Fringing reefs grow directly from the continental shore, while atolls are circular reefs surrounding a central lagoon.
Explanation: Fringing reefs (like those in Kutch and Andamans) border coastlines closely, whereas atolls (like those in Lakshadweep) are ring-shaped reefs that enclose a lagoon, often formed atop submerged volcanoes.
Consider the following statements regarding the corals in the Gulf of Kutch:
1. They are primarily atoll reefs similar to those in Lakshadweep.
2. They survive in highly challenging conditions of high salinity and large tidal amplitudes.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Statement 1 is incorrect. The corals in the Gulf of Kutch are fringing reefs, not atolls. Statement 2 is correct as they survive extreme temperatures, high salinity, and muddy waters.
The bleaching of corals in Marine National Parks is primarily triggered by the expulsion of which symbiotic organism?
- Phytoplankton
- Benthic Foraminifera
- Zooxanthellae
- Cyanobacteria
Explanation: Corals have a symbiotic relationship with microscopic algae called zooxanthellae. When stressed by temperature or pollution, corals expel these algae, leading to coral bleaching.
Which of the following rivers is most closely associated with the nesting beaches of the Gahirmatha Marine Sanctuary?
- Subarnarekha
- Godavari
- Dhamra
- Mahanadi
Explanation: The Gahirmatha beach separates the Bhitarkanika mangroves from the Bay of Bengal and extends near the mouth of the Dhamra river.
Which of the following Marine National Parks is located in the Andaman and Nicobar Islands and is specifically known for encompassing the 'Labyrinth Islands'?
- Saddle Peak Island National Park
- Gulf of Mannar Marine National Park
- Rani Jhansi Marine National Park
- Mahatma Gandhi Marine National Park
Explanation: The Mahatma Gandhi Marine National Park, located near Wandoor in the Andaman Islands, comprises 15 islands, the most prominent group being the Labyrinth Islands.
Which of the following represents a primary conceptual distinction between a 'Biosphere Reserve' and a 'Marine National Park' in the Indian conservation framework?
- A Biosphere Reserve allows sustainable human activities in its outer zones, whereas a National Park strictly prohibits all such activities.
- A Biosphere Reserve exclusively protects terrestrial fauna, whereas a National Park exclusively protects aquatic and marine flora.
- A Biosphere Reserve is legally declared under the WPA 1972, whereas a National Park is declared under the EPA 1986.
- A Biosphere Reserve is managed directly by the United Nations, whereas a National Park is managed by the State Government.
Explanation: Biosphere Reserves are structured into core, buffer, and transition zones, designed to balance conservation with sustainable human development. A National Park functions more like the strict 'core' zone where human exploitation is legally banned.
Which statutory body is primarily responsible for delineating the boundaries and granting clearances for developmental projects near Marine National Parks?
- The Central Water Commission
- The Animal Welfare Board of India
- The National Biodiversity Authority
- The National Board for Wildlife
Explanation: The National Board for Wildlife (NBWL), particularly its Standing Committee, evaluates and grants clearances for any developmental projects located in or around National Parks and Sanctuaries.
Which of the following marine species is listed under Schedule I of the Wild Life (Protection) Act, 1972 and is commonly found in the Gulf of Kutch?
- Whale Shark
- Sardine
- Tiger Prawn
- Common Dolphin
Explanation: The Whale Shark is the largest living fish species and is frequently sighted off the coast of Gujarat. It is granted maximum protection under Schedule I.
The Mahatma Gandhi Marine National Park is located in which of the following regions?
- Wandoor, Andaman Islands
- Jamnagar coast, Gujarat
- Ritchie's Archipelago, Nicobar Islands
- Tuticorin coast, Tamil Nadu
Explanation: The Mahatma Gandhi Marine National Park is situated near Wandoor on the Andaman Islands. It was established to protect marine life, especially sea turtles and coral reefs.
The Rani Jhansi Marine National Park is situated in which of the following geographical locations?
- The Sundarbans Delta
- The Palk Strait
- The Ritchie's Archipelago
- The Gulf of Khambhat
Explanation: Rani Jhansi Marine National Park is located in Ritchie's Archipelago in the Andaman and Nicobar Islands, offering protection to coral reefs, mangroves, and terrestrial forests.
Which of the following naturally occurring physical phenomena periodically exposes the coral reefs of the Gulf of Kutch Marine National Park to the open air and intense sunlight?
- Rapid tectonic uplift of the coastal sea bed.
- Frequent underwater volcanic eruptions.
- Seasonal drying of estuarine feeding rivers.
- Exceptionally high tidal amplitudes.
Explanation: The Gulf of Kutch features one of the highest tidal ranges in India. During extreme low tides, vast areas of the fringing coral reefs are completely exposed to the air.
Which of the following is a completely submerged, coral-fringed bank in the Arabian Sea that has been proposed as a Marine Protected Area?
- Sagar Island
- Barren Island
- Narcondam Island
- Angria Bank
Explanation: Angria Bank is a submerged plateau located off the coast of Maharashtra in the Arabian Sea. It hosts a rich, pristine coral reef ecosystem and is proposed for MPA status.
What unique physical phenomenon frequently exposes the coral reefs of the Gulf of Kutch Marine National Park to the open air?
- Seasonal drying up of the gulf's feeding rivers.
- Frequent tectonic uplift of the seabed.
- Continuous deposition of wind-blown desert sand.
- Exceptionally high tidal amplitudes in the gulf.
Explanation: The Gulf of Kutch experiences extreme tidal ranges. During low tides, vast tracts of the seabed and fringing coral reefs are exposed to the open air and sun.
The Gulf of Mannar Marine National Park is ecologically significant because it acts as a highly biodiverse transition zone between:
- The Gulf of Khambhat and the Arabian Sea basin.
- The Palk Bay and the broader Indian Ocean.
- The Arabian Sea and the broader Indian Ocean.
- The Bay of Bengal and the Andaman Sea region.
Explanation: The Gulf of Mannar lies to the south of the Palk Strait and Adam's Bridge, serving as a critical marine transition zone between the shallower Palk Bay and the deeper Indian Ocean.
Which of the following best describes the 'Crown-of-Thorns Starfish' in the context of India's Marine National Parks?
- A symbiotic organism that helps build limestone structures in reefs.
- An indicator species used to measure the purity of estuarine waters.
- A major natural predator of coral polyps that threatens reef ecosystems in the Andamans.
- A highly protected endemic species found only in the Gulf of Kutch.
Explanation: The Crown-of-Thorns starfish is a voracious predator of reef-building corals. Outbreaks of this species have caused significant damage to coral reefs in the Andaman and Nicobar Islands.
In the context of India's coastal conservation efforts, the 'Angria Bank' is most accurately described as:
- A fully submerged coral reef bank located off the coast of Maharashtra.
- A major nesting beach for Leatherback turtles located in the Andaman Islands.
- A deep-sea oceanic trench located at the edge of the exclusive economic zone.
- A coastal mangrove sanctuary situated within the Sundarbans delta region.
Explanation: Angria Bank is a submerged plateau in the Arabian Sea off the coast of Maharashtra. It hosts a pristine, submerged coral reef ecosystem and has been proposed for Marine Protected Area status.
Which of the following marine protected areas is globally renowned as the largest mass nesting site (arribada) for Olive Ridley sea turtles?
- Malvan Marine Sanctuary
- Coringa Wildlife Sanctuary
- Gahirmatha Marine Sanctuary
- Point Calimere Wildlife Sanctuary
Explanation: Gahirmatha Marine Sanctuary, located in Odisha near the Bhitarkanika National Park, is the world's largest known rookery of Olive Ridley sea turtles.
Consider the following statements regarding the 'Saltwater Crocodile' (Crocodylus porosus):
1. It is a prominent apex predator frequently sighted in the Mahatma Gandhi Marine National Park.
2. Despite being heavily protected in India, it is listed as 'Least Concern' on the global IUCN Red List.
Which of the statements given above is/are correct?
- 2 only
- 1 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Both statements are correct. They thrive in the mangrove ecosystems of the Andamans. While granted Schedule I protection in India due to historical hunting, their massive global range across Oceania makes them 'Least Concern' globally.
Which of the following distinct terrestrial ecosystems is famously absent in the Gulf of Kutch Marine National Park, but is highly abundant in the marine parks of the Andamans?
- Tropical evergreen forests.
- Fringing coral reefs.
- Dense mangrove swamps.
- Expansive tidal mudflats.
Explanation: The Gulf of Kutch is situated in an arid, semi-desert climate and lacks tropical evergreen rainforests, which are a defining feature of the islands in the Andaman Sea.
The 'Bhitarkanika National Park', which is intricately interconnected with the Gahirmatha marine ecosystem, is globally renowned for hosting an exceptionally high population of:
- The endangered Ganges River Dolphin.
- The critically endangered Dugong species.
- The estuarine Saltwater Crocodile.
- The endemic Nicobar Megapode bird.
Explanation: Bhitarkanika is famous for its dense mangrove forests which support one of the largest and most stable populations of the massive Saltwater Crocodile in the world.
The 'Rani Jhansi Marine National Park', known for its pristine coral reefs and dense mangrove cover, is located in which specific island group?
- The Great Nicobar Biosphere
- The Labyrinth Island Group
- The Sentinelese Archipelago
- The Ritchie's Archipelago
Explanation: The Rani Jhansi Marine National Park is situated in Ritchie's Archipelago, a cluster of smaller islands lying to the east of Great Andaman.
The 'Pirotan Island' is a highly restricted, ecologically sensitive zone renowned for its accessible coral walks. It is located within the boundaries of the:
- Rani Jhansi Marine National Park
- Gulf of Kutch Marine National Park
- Gulf of Mannar Marine National Park
- Mahatma Gandhi Marine National Park
Explanation: Pirotan Island is one of the most famous islands in the Gulf of Kutch Marine National Park, known for allowing visitors to walk on the exposed reefs during low tide.
Consider the following pairs of Marine Protected Areas and their associated States/UTs:
1. Gahirmatha : West Bengal
2. Malvan : Maharashtra
3. Wandoor : Andaman & Nicobar
Which of the pairs given above is/are correctly matched?
- 1, 2 and 3
- 1 and 3 only
- 1 and 2 only
- 2 and 3 only
Explanation: Pair 1 is incorrectly matched. The Gahirmatha Marine Sanctuary is located in the state of Odisha, not West Bengal.
'Operation Olivia' is a dedicated annual enforcement initiative undertaken by the Indian Coast Guard primarily to ensure the protection of:
- Olive Ridley turtles nesting along the Odisha coast.
- Dugongs foraging in the shallow Gulf of Mannar.
- Coral reefs from illegal dynamite fishing activities.
- Whale sharks migrating near the Gulf of Kutch.
Explanation: Operation Olivia is conducted every year to protect the Olive Ridley turtles during their mass nesting phase (arribada) at sites like Gahirmatha and Rushikulya in Odisha.
Which of the following Marine Protected Areas historically suffered the most severe ecological degradation due to the illegal mining of coral reefs for the regional cement and lime industries?
- Mahatma Gandhi Marine National Park
- Rani Jhansi Marine National Park
- Gulf of Mannar Marine National Park
- Malvan Marine Wildlife Sanctuary
Explanation: Before strict enforcement was put in place, the coral reefs of the Gulf of Mannar were heavily exploited and illegally mined for their rich calcium carbonate content to supply local lime and cement kilns.
Which of the following was designated as the first Marine National Park in India?
- Mahatma Gandhi Marine National Park
- Gulf of Kutch Marine National Park
- Rani Jhansi Marine National Park
- Gulf of Mannar Marine National Park
Explanation: Established in 1982, the Gulf of Kutch in Gujarat was the first area in India to be declared a Marine National Park to protect its fragile coral reefs and mangroves.
The Coastal Regulation Zone (CRZ) Notification of 2019 categorizes highly ecologically sensitive areas, explicitly including Marine National Parks, under which regulatory zone?
- CRZ-II
- CRZ-I B
- CRZ-I A
- CRZ-III
Explanation: CRZ-I A designates the most ecologically sensitive and critical coastal areas, such as National Parks, Sanctuaries, coral reefs, and mangroves, strictly prohibiting developmental activities.
Consider the following statements regarding the conservation of mangroves in Marine National Parks:
1. Mangroves increase the turbidity of water, which is highly beneficial for coral growth.
2. The roots of mangroves protect the adjacent coral reefs by trapping terrestrial sediments.
Which of the statements given above is/are correct?
- 1 only
- 2 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Statement 1 is incorrect because corals require clear, sunlit water; high turbidity harms them. Statement 2 is correct as mangroves trap sediment from land runoff, keeping the water clear for the corals.
Consider the following statements regarding coral reefs in India:
1. The Gulf of Kutch reefs are heavily threatened by industrialization and sediment influx.
2. The corals in Lakshadweep are entirely located within a designated Marine National Park.
Which of the statements given above is/are correct?
- 2 only
- 1 only
- Both 1 and 2
- Neither 1 nor 2
Explanation: Statement 2 is incorrect. While Lakshadweep has extensive atoll reefs, the region does not have a legally designated 'Marine National Park' under the WPA 1972, though it has protected areas like the Pitti Bird Sanctuary.