MCQs on EVM(Environment Management) Page 2

1. CFCs are crucial in global warming along with their role in ozone depletion as it

a. is known for destroying ozone, which cools the earth

b. blocks ultraviolet-B radiation

c. absorbs solar radiation

d. absorbs earthshine in 10 micron region


2. Which of the following is not a major greenhouse gas?

a. ozone

b. water vapour

c. methane

d. carbon dioxide


3. Ultraviolet radiations from sunlight cause a reaction producing

a. carbon monoxide

b. ozone

c. fluorides

d. sulphur dioxide


4. Surplus of atmospheric carbon dioxide causes an increase in the greenhouse effect as carbon dioxide

a. is opaque to infrared rays

b. is not opaque to infrared rays

c. precipitates dust in the atmosphere

d. reduce atmospheric pressure


5. Checking of re radiating heat by atmospheric carbon dioxide, dust, methane, ozone is known as

a. solar effect

b. radioactive effect

c. ozone layer

d. greenhouse effect


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

a. 7

b. 7.3

c. 5.6

d. 6


7. 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


8. 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

Explanation: Sulphur dioxide and nitrous oxide have a high tendency to mix with water to form sulphurous/sulphuric acid and nitric acid.


9. Which place in India receives the highest annual rainfall?

a. Mawsynram        

b. Cherrapunji

c. Siju

d. Phyllut


10. Who discovered the phenomenon of acid rain?

a. George Brown

b. James T. Stewart

c. Robert Angus Smith

d. Charles David


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

a. 7

b. 7.5

c. 6.5

d. 4.8


12. Which one of the following cause acid rain?

a. Water pollution

b. Soil pollution

c. Air pollution

d. Noise Pollution


13. 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


14. What is the nature of acid rain?

a. Withstanding

b. Protecting

c. Corrosive

d. Balancing


15. 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


16. 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


17. 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


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


19. Natural sources also cause acid rain.

a. True

b. False

Explanation: The major natural causing agent for acid rain is volcanic emission. Volcanoes emit acid producing gases to create higher than normal amounts of acid rain or any other form of precipitation such as fog and snow.


20. What is the full form of CFCs?

a. Chlorofluorocarbons

b. Chlorine fluorocarbons

c. Chromate fluorocarbons

d. Chlorofluridcarbons


21. The most important reason for biodiversity loss in today’s age is

a. over-exploitation

b. co-extinctions

c. alien species invasions

d. fragmentation and habitat loss


22. Biodiversity loss can lead to everything except this

a. increased resistance to the environmental perturbance

b. a decline in plant production

c. increased variability in water use

d. increased variability in pest and disease cycle


23. The hot spots of biodiversity are characterized by:

a. low endemicity and low threat of extinction

b. low endemicity and high threat of extinction

c. high endemicity and low threat of extinction

d. high endemicity and high threat of extinction


24. The natural place of an organism or community is known as

a. Niche

b.Biome

c. Habitat

d. Habit


25. Who proposed the term ecosystem?

a. Grinnel

b. Turesson

c. A.G. Tansley

d. Lindeman



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