Explore topic-wise MCQs in Environmental Science.

This section includes 14 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.

In rural areas, what has contributed significantly to particulate pollution?

A. Incomplete combustion in vehicles
B. Using wood for fire and cooking
C. Fertilisers
D. All of the mentioned
Answer» C. Fertilisers
2.

What is the size range of atmospheric particulate matter?

A. 0.1 – 10 microns
B. 0.1 – 1 micron
C. 1 – 10 microns
D. 10 – 100 microns
Answer» B. 0.1 – 1 micron
3.

Which of the following constituent of photochemical smog causes the bronzing of plants?

A. PBN
B. PAN
C. PFN
D. Ketones
Answer» C. PFN
4.

What is the size range of respirable suspended particulate matter?

A. Less than 1 micrometre
B. Less than 10 micrometre
C. Less than 100 micrometre
D. Less than 0.1 micrometre
Answer» C. Less than 100 micrometre
5.

WHAT_IS_THE_SIZE_RANGE_OF_ATMOSPHERIC_PARTICULATE_MATTER??$

A. 0.1 – 10 microns
B. 0.1 – 1 micron
C. 1 – 10 microns
D. 10 – 100 microns
Answer» B. 0.1 ‚Äö√Ñ√∂‚àö√ë‚àö¬® 1 micron
6.

In_rural_areas,_what_has_contributed_significantly_to_particulate_pollution?$

A. Incomplete combustion in vehicles
B. Using wood for fire and cooking
C. Fertilisers
D. All of the mentioned
Answer» C. Fertilisers
7.

Which of the following aerosols have the best absorbing properties?

A. Carbon black
B. Soot
C. Elemental Carbon
D. All of the mentioned
Answer» E.
8.

What is the reason behind the yellow colour of smog?

A. Nitrogen dioxide
B. Sulphur dioxide
C. Sulphate ions
D. Nitrate ions
Answer» D. Nitrate ions
9.

Which of the following constituent of photochemical smog causes the bronzing of plants?

A. PBN
B. PAN
C. PFN
D. Ketones
Answer» C. PFN
10.

What is the composition of photochemical smog?

A. Nitrogen oxides, ketones and ozone
B. VOCs and hydrocarbons
C. Peroxy-acetyl-nitrate, peroxy-benzoyl-nitrate, peroxy fornyl-nitrate
D. All of the mentioned
Answer» E.
11.

Which type of particulate is condensed form of vapours?

A. Mist
B. Dust
C. Fumes
D. Smoke
Answer» D. Smoke
12.

Which of the following is a viable particulate?

A. Smoke
B. Mist
C. Dust
D. Moulds
Answer» E.
13.

Air-borne particulates are classified as group 1 carcinogens.

A. True
B. False
Answer» B. False
14.

What is the size range of respirable suspended particulate matter?

A. Less than 1 micrometre
B. Less than 10 micrometre
C. Less than 100 micrometre
D. Less than 0.1 micrometre
Answer» C. Less than 100 micrometre