environmental chemistry - Category wise Question and Answer Practice Test with Solutions

Question : 26

People drinking water from a shallow handpump are likely to suffer from the diseases

1. cholera
2. typhoid
3. jaundice
4. flourosis

a) 1, 2 and 3

b) 1, 2 and 4

c) 2, 3 and 4

d) 1 and 3

Question : 27

Which of the following is/are the hazardous pollutant(s) present in automobile exhaust gases?

1. N₂
2. CO
3. CH₄
4. Oxides of nitrogen

a) 1 and 2

b) 2 and 3

c) 2 and 4

d) 1 and 3

Question : 28 [CDS]

From which one among the following water sources, the water is likely to be contaminated with fluoride?

a) Pond water

b) River water

c) Ground water

d) Rain water

Question : 29

Which of the following statements is correct?

a) Ozone hole is a hole formed in the troposphere from which ozone oozes out.

b) Ozone hole is thinning of ozone layer of stratosphere at some places.

c) Ozone hole is a hole formed in stratosphere from which ozone oozes out.

d) Ozone hole means vanishing of ozone layer around the earth completely.

Question : 30

Which of the following is a biological method of pest control in a field?

a) Fences around the field

b) Use of pesticide

c) Use of scarecrow in a strategic position.

d) Rotation of crop.