Multiple choice

Large number of fish are found on the western coast of the deserts in the tropical region. This is because

  1. the hot-dry climate is more suitable for fish

  2. upwelling of cold waters from the bottom of the sea provide abundant food for fish

  3. fish in large numbers come up from the sea bottom

  4. clear sunshine attracts fish in large numbers

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Upwelling along desert coasts brings cold, nutrient-rich water from the deep ocean to the surface. These nutrients support phytoplankton growth, which creates a food chain that attracts large numbers of fish. This explains abundant fisheries off arid coasts like Peru, California, and West Africa.

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