Enlist the sources and ill-effects of carbon monoxide.

Give the source and ill-effects of carbon monoxide.

What are the effects of carbon monoxide?

Give the source and ill-effects of chlorofluro carbons.

What is soil erosion? Write the causes and ill effects of soil erosion. How will you prevent the soil erosion?

Name a plant which fixes carbon monoxide.

What are the ill effects of DDT?

Discuss : Ill effects of acid rain

List some ill effects of water pollution.