Explore topic-wise MCQs in Environmental Science.

This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Environmental Science knowledge and support exam preparation. Choose a topic below to get started.

1.

Which are the sources of arsenic pollution?

A. Coal and petroleum
B. Detergents and pesticides
C. Mine tailings
D. All of the mentioned
Answer» E.
Discussion
2.

Which of the following is a source for boron air pollution?

A. Rockets and jets
B. Automobiles
C. Soap industries
D. Refrigerants
Answer» B. Automobiles
Discussion
3.

Which is/are the most significant air-borne allergen(s)?

A. Fungi
B. Pollen
C. Soot
D. All of the mentioned
Answer» C. Soot
Discussion
4.

Which of the following are sources to fluorine air pollution?

A. Coal combustion
B. Steel industries
C. Phosphate fertiliser manufacturing
D. All of the mentioned
Answer» E.
Discussion
5.

Pesticides also contribute to air pollution along with polluting underground reservoirs.

A. True
B. False
Answer» B. False
Discussion
6.

Which is the largest source for production of nitrous oxide?

A. Chemical industry
B. Fertiliser industry
C. Fossil fuel combustion
D. Bacterial action
Answer» E.
Discussion
7.

Which is the major source for sulphur dioxide?

A. Volcanic eruptions
B. Coal and crude oil combustion
C. Burning of petrol
D. Sewage treatment process
Answer» C. Burning of petrol
Discussion
8.

At what concentration can the taste and smell of sulphur dioxide be detected?

A. 1000-2000ppm
B. 11-30ppm
C. 500-700ppm
D. 0.1-0.3ppm
Answer» E.
Discussion
9.

Which of the following gases has the highest affinity for blood haemoglobin?

A. Carbon dioxide
B. Oxygen
C. Carbon monoxide
D. Nitrogen
Answer» D. Nitrogen
Discussion
10.

What is the residence time (average time a particle is active in a given system) of carbon monoxide?

A. 11-15 years
B. 0.1-0.3 years
C. 0.5 years
D. Few minutes
Answer» C. 0.5 years
Discussion