Coral reefs are not found in India, as they require warm, clear waters and are typically found in tropical regions.

The Sundarbans is the largest mangrove forest in India and one of the largest in the world, covering an area of over 10,000 square kilometers.

Coral reefs are known for their high biodiversity and provide habitat for a wide range of marine species, including fish, invertebrates, and algae.

All of the options are major threats to the coastal and marine ecosystems of India. Pollution, overfishing, habitat destruction, and climate change are all contributing to the degradation of these ecosystems.

All of the options are government initiatives aimed at conserving the coastal and marine ecosystems of India. ICZM, NCZMP, CRZ, and MPAs are all part of a comprehensive approach to protect and manage these ecosystems.

The Gulf of Mannar Marine National Park is a marine national park located in the Gulf of Mannar, Tamil Nadu. It is known for its rich biodiversity and is home to a variety of marine species, including corals, fish, and invertebrates.

All of the options are major fishing ports in India. Mumbai, Chennai, Kolkata, and Visakhapatnam are all important centers for fishing and seafood processing.

Catamaran fishing is a traditional fishing method practiced by fishermen in the coastal regions of India. It involves using a catamaran, a traditional boat with two hulls, to go fishing.

All of the options are major threats to the marine biodiversity of India. Bycatch, overfishing, habitat destruction, and pollution are all contributing to the decline of marine species and ecosystems.

The Ministry of Fisheries, Animal Husbandry and Dairying is the government agency responsible for regulating fishing activities in India. It is responsible for formulating and implementing policies related to fisheries, including conservation and management of marine resources.

Project Olive Ridley is a major conservation initiative aimed at protecting the olive ridley turtles in India. It involves the conservation of nesting beaches, awareness campaigns, and research on the species.

All of the options are marine mammals that are found in the coastal waters of India. Dugongs, dolphins, whales, and sea lions are all found in different parts of the Indian coast.

All of the options are major threats to the dugongs in India. Bycatch, habitat destruction, pollution, and climate change are all contributing to the decline of dugong populations.

Project Dugong is a government initiative aimed at conserving the dugongs in India. It involves the conservation of seagrass beds, awareness campaigns, and research on the species.

All of the options are major challenges in the conservation of coastal and marine ecosystems in India. Lack of awareness, lack of funding, and lack of political will are all hindering the efforts to protect these ecosystems.