Life under Water
Life under Water: Overview
This topic covers concepts such as Desert Plants, Bioluminescence, Oil Spill in the Sea, Plastic Waste, Desert Animals, Algal Bloom, Aquatic Organism, Plankton, Phytoplankton, Zooplankton, Ocean Acidification, Marine Pollution, and Oasis in Desert.
Important Questions on Life under Water
What are the salient features of deserts?

What is ocean acidification.

Mention the effects of algal bloom.

What is meant by Zooplankton?

What is Bioluminescence?

What are the causes marine pollution?

Algal blooms secrete toxins into the water.

_____ causes the death of marine life.

Algal bloom causes the death of marine life.

Oil spills do not affect human beings.

What is meant by oil spill, and how is it harmful to marine life?

Define the meaning of the term plankton.

_____ organisms are very small forms of free-floating plants and animals that live in seas, rivers, lakes, etc.

Plankton organisms are aquatic drifters.

Choose the option that has plankton organisms.

Phytoplankton is a unicellular microscopic animal.

Phytoplankton performs photosynthesis.

Choose the phytoplankton organism.

Which varieties of fish were plentiful earlier in West Bengal, but now have decreased in number? Write.

Identify and write some desert plants in your surroundings.
