3. Put a tick ✓ in the box against the following statements if they are
true and a cross if they are false :
(1) Water from gutters should be used to grow vegetables, fodder. etc.
(2) With increase in industries. various types of pollutants affecting
environment have decreased.
(3) Jaundice is caused by air pollution
(4) The increase in the amount of co, in the atmosphere has led
to the problem of global warming
(5) Acid rain is beneficial to vegetation.
(6) To preserve fertility of soil chemical fertilizers should be used in
great quantities.
(7) Loudspeakers should be played loudly during marriage ceremonies.
(8) Industries should take up afforestation to regulate noise pollution.

1) × ( wrong)

2) × ( wrong)

3) × ( wrong)

4) √ ( right)

5) × ( wrong)

6) × ( wrong)

7) × (wrong)

8) √ ( right)

Explanation - Water from gutters should not be used to grow vegetables and fruits. It affects the plant as it has high level of impurities in it . it should be treated before use. With increase in industries , pollutants also increases as industries releases its waste materials and harm full chemicals into the environment. Jaundice is caused by the infection in an organ and not by the air pollution. It is the condition when the skin turns yellow Co2 is the main gas which result in global warming Acid rain decreases the natural fertility of soil and male the plant unhealthy. It is not beneficial for vegetation in any way. it harms plant and crops. Excessive use of fertiliser weakens the soil fertility. fertiliser are produced in a factory with use of many chemicals. it should not be use in high doses.Loudspeaker should not be played at high volume as it causes noise pollution and hearing problems.

Answerair masses develop near the equator are warm; tropical air mass