Read the paragraph under the title ‘In addition to……. And soil’ on page 57 and comment on it. (AS₃)

Increase in a number of industries have increased the level of pollution.

a. Spontaneous burning of fossil fuels has increased carbon dioxide in the atmosphere.

b. Industries releases waste materials in the form of gases and liquid into atmosphere and water bodies respectively.

c. This has contaminated the air and water.

d. As a result air and water pollution has increased at an alarming rate.

Discussion: Collect information with regard to the animals/birds extinction. Fill up this table and discuss in the classroom.