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5 questions · self-marked practice — reveal the answer and mark yourself.

Question 18 Marks
India also produces water from desalination plants. Find out their locations with the help of the internet.
Answer
The Minjur Desalination Plant is the largest in India, located at Kattupalli village, a northern suburb of Chennai on the coast of the Bay of Bengal that supplies water to the city of Chennai.
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Question 28 Marks
Find out the name and locations of islands located in India and list them in the above given categories.
Answer
  1. Continental Islands: Minicoy, Seven Islands of Bombay (Bombay is the present-day Mumbai.), Sundarbans, Amindivi, etc.
  2. Volcanic Island: Barren island part of Andaman and Nicobar Islands
  3. Coral Island: Andaman and Nicobar, Gulf of Kutch, Gulf of Mannar, Lakshadweep, Tarkarli in Malvan, etc.
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Question 38 Marks
Discuss how development of oceanic tourism should be carried out without disturbing marine life.
Answer
It is difficult to clean up mass pollution once it has occurred, so the best plan is prevention. Several changes can take place to help keep industry in check and encourage sustainable practices such as:
  1. Stricter government regulations on industry and manufacturing is one large scale solution. There are several laws to help protect beaches, reduce pollution from ships, reduce marine debris, and prohibit ocean dumping.
  2. Implement renewable energy sources, such as wind or solar power, to limit off-shore drilling.
  3. Limit agricultural pesticides and encourage organic farming and eco-friendly pesticide use.
  4. Proper sewage treatment and exploration of eco-friendly wastewater treatment options, such as recycling sewage sludge to carbon-phosphorous fertilizer, are other solutions.
  5. Cut down on industry and manufacturing waste and contain landfills so they do not spill into the ocean.
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Question 48 Marks
There is similarity in the relief on the land surface and the ocean bottom.
Answer
Ocean tourism is developed along the coastal areas of seas and oceans-
Ocean tourism comes in many forms like cruises, scuba-diving, fishing, beach tourism, etc. Such activities are increasingly becoming popular.

Generally, water sports activities such as scuba diving, surfing, water skiing, etc., are developed along the coastline. For example, sport activities along the coast of Goa.

There is beautiful scenery along the coastline due greenery of trees along the coast, huge waterbody of sea or ocean, clean air and coolness due to nearness to water, therefore many resorts, hotels, marina, etc., are developed and coastal areas have become popular for tourism. For example, tourism along Konkan coastline. The cruise tourism is also increasing.

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Question 58 Marks
The marine pollution is ultimately going to be harmful to the man himself. Discuss.
Answer
  1. Though the human activities are a major cause behind climate change, there are some natural causes for climate change. They are as follows:
  2. Importance of the ocean is increasing day by day in various ways, human dependence on oceans is likely to increase manifold in the days to come.
  3. Nowadays, the oceanic waters are getting polluted on a large scale.
  4. This causes deterioration of the natural quality of ocean water.
  5. The leakages of oil from oil transporting ships, oil extraction from coastal areas, disposal of solid waste containing radioactive matter, atomic tests etc., are causing large scale pollution of oceanic waters.
  6. The effluents brought by river discharges, the disposal of waste from coastal cities, the waste from industries and many other similar factors are polluting the oceanic waters.
  7. As a result, the very existence of marine life is threatened.
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