Explore topic-wise MCQs in Environmental Science.

This section includes 36 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.

When was the “Clean Air Act” in United States came into force?

A. 1950
B. 1960
C. 1970
D. 1980
Answer» D. 1980
2.

Who was the first to use the phrase “Acid Rain”?

A. Robert Angus Smith
B. Ernest Flower
C. Elmer Joseph Clark
D. Christ Ralph
Answer» B. Ernest Flower
3.

Which is the most acidic in pH scale?

A. 0
B. 7
C. 10
D. 14
Answer» B. 7
4.

How can we control acid rain which is causing due to the exhaust fumes on the atmosphere by cars?

A. By burning more fuels
B. By using old engine vehicles
C. By using ignition
D. By using catalytic converters
Answer» E.
5.

Which of the following is the best way to reduce acid rain in soil?

A. By adding sulphur to the soil
B. By adding nitrogen to the soil
C. By adding oxygen to the soil
D. By adding limestone to the soil
Answer» E.
6.

The Taj Mahal in India is affected by____________________

A. Fog
B. Acid rain
C. Water pollution
D. Spoil Pollution
Answer» C. Water pollution
7.

Which one of the following cause acid rain?

A. Water pollution
B. Soil pollution
C. Air pollution
D. Noise Pollution
Answer» D. Noise Pollution
8.

Which of the following gases is responsible for the yellowing of the Taj Mahal?

A. Organic carbon
B. Black carbon
C. Brown carbon
D. All of the mentioned
Answer» E.
9.

The acidic air pollutants reach the Earth’s surface because of wet deposition only.

A. True
B. False
Answer» C.
10.

Who discovered the phenomenon of acid rain?

A. George Brown
B. James T. Stewart
C. Robert Angus Smith
D. Charles David
Answer» D. Charles David
11.

What does the term “liming” mean?

A. Application of magnesium and calcium rich substances to soil
B. Erosion of calcium carbonate(lime) zones in soil
C. Excessive growth of lemon trees in acid rain prone regions
D. None of the mentioned
E. zones in soilc) Excessive growth of lemon trees in acid rain prone regionsd) None of the mentioned
Answer» B. Erosion of calcium carbonate(lime) zones in soil
12.

Glass containers are generally not preferred for sampling rain water. Why?

A. Glass containers are expensive
B. Glass containers are not easy to maintain
C. Glass containers affect the pH of the rain water
D. All of the mentioned
Answer» D. All of the mentioned
13.

Below which of the following pH is rain regarded as ‘acid rain’?

A. 7
B. 7.3
C. 5.6
D. 6
Answer» D. 6
14.

WHICH_OF_THE_FOLLOWING_GASES_IS_RESPONSIBLE_FOR_THE_YELLOWING_OF_THE_TAJ_MAHAL?

A. Organic carbon
B. Black carbon
C. Brown carbon
D. All of the mentioned
Answer» E.
15.

WHICH_OF_THE_FOLLOWING_IS_THE_BEST_WAY_TO_REDUCE_ACID_RAIN_IN_SOIL??$

A. By adding sulphur to the soil
B. By adding nitrogen to the soil
C. By adding oxygen to the soil
D. By adding limestone to the soil
Answer» E.
16.

THE_ACIDIC_AIR_POLLUTANTS_REACH_THE_EARTH‚ÄÖ√Ñ√∂‚ÀÖ√Ë‚ÀÖ¬•S_SURFACE_BECAUSE_OF_WET_DEPOSITION_ONLY.?$#

A. True
B. False
Answer» C.
17.

Which is the most acidic in pH scale?

A. 0
B. 7
C. 10
D. 14
Answer» B. 7
18.

How_can_we_control_acid_rain_which_is_causing_due_to_the_exhaust_fumes_on_the_atmosphere_by_cars?$

A. By burning more fuels
B. By using old engine vehicles
C. By using ignition
D. By using catalytic converters
Answer» E.
19.

Natural sources also cause acid rain.

A. True
B. False
Answer» B. False
20.

When was the “Clean Air Act” in United States came into force?$

A. 1950
B. 1960
C. 1970
D. 1980
Answer» D. 1980
21.

Who_was_the_first_to_use_the_phrase_“Acid_Rain”?$

A. Robert Angus Smith
B. Ernest Flower
C. Elmer Joseph Clark
D. Christ Ralph
Answer» B. Ernest Flower
22.

The Taj Mahal in India is affected by___________________?

A. Fog
B. Acid rain
C. Water pollution
D. Spoil Pollution
Answer» C. Water pollution
23.

What is the pH required for the survival of aquatic animals and plants?

A. 7
B. 7.5
C. 6.5
D. 4.8
Answer» E.
24.

Which one of the way can prevent acid rain?

A. Increase the emission of sulfur dioxide and nitrogen oxides
B. Decrease the emission of sulfur dioxide and nitrogen oxides
C. Increase in the emission of hydrochloride and phosphate
D. Decrease in the emission of hydrochloride and phosphate
Answer» C. Increase in the emission of hydrochloride and phosphate
25.

Which of the following is/are natural contributor(s) to sulphur dioxide in the atmosphere?

A. Sea sprays
B. All of the mentioned
C. Decaying vegetation
D. Volcanic eruption
Answer» C. Decaying vegetation
26.

Acid rain does not cause any environmental damages.

A. True
B. False
Answer» C.
27.

Who discovered the phenomenon of acid rain?

A. George Brown
B. James T. Stewart
C. Robert Angus Smith
D. Charles David
Answer» D. Charles David
28.

What is the result of acid rain when it falls into water bodies?

A. The water becomes acidic
B. The water becomes pure
C. The water increase its nutrients value
D. The water increase its level
Answer» B. The water becomes pure
29.

Which place in India receives the highest annual rainfall?

A. Mawsynram
B. Cherrapunji
C. Siju
D. Phyllut
Answer» B. Cherrapunji
30.

Which of the following way acid rain affects the plants?

A. By nourishing the nutrients from the soil
B. By increasing the nutrients from the soil
C. By removing nutrients from the soil
D. By balancing the nutrients in the soil
Answer» D. By balancing the nutrients in the soil
31.

What does the term “liming” mean?$

A. Application of magnesium and calcium rich substances to soil
B. Erosion of calcium carbonate(lime) zones in soil
C. Excessive growth of lemon trees in acid rain prone regions
D. None of the mentioned
Answer» B. Erosion of calcium carbonate(lime) zones in soil
32.

What is the nature of acid rain?

A. Withstanding
B. Protecting
C. Corrosive
D. Balancing
Answer» D. Balancing
33.

Which of the following gases are main contributors to acid rain?

A. Carbon dioxide and carbon monoxide
B. Sulphur dioxide and carbon dioxide
C. Sulphur dioxide and nitrogen dioxide
D. Sulphur dioxide and nitrous oxide
Answer» E.
34.

What are two acids formed when gases react with the tiny droplets of water in clouds?

A. Sulphuric acids and nitric acid
B. Hydrochloric acid and nitric acid
C. Sulfurous acid and acetylsalicylic acid
D. Sulphuric acid and hydrochloric acid
Answer» B. Hydrochloric acid and nitric acid
35.

Glass containers are generally not preferred for sampling rain water. Why?

A. Glass containers are expensive
B. Glass containers are not easy to maintain
C. Glass containers affect the pH of the rain water
D. All of the mentioned
Answer» D. All of the mentioned
36.

Below which of the following pH is rain regarded as ‘acid rain’?

A. 7
B. 7.3
C. 5.6
D. 6
Answer» D. 6