1. What is produced by burning fossil fuels?
A) Carbon monoxide
B) Oxides of sulphur and nitrogen
C) Water vapor
D) Ozone
2. What is the pH of normal rainwater?
A) 7
B) 5.6 to 6
C) 4
D) 3
3. What causes acid rain to form?
A) Dissolved oxygen
B) Dissolved acidic air pollutants
C) Dissolved minerals
D) Dissolved salts
4. Which metal is mentioned as leached by acid rain?
A) Iron
B) Aluminum
C) Sodium
D) Calcium
5. Acid rain can damage which type of natural resource?
A) Soil
B) Air
C) Sunlight
D) Wind
6. How does acid rain affect fish in aquatic life?
A) Improves growth
B) Clogs fish gills
C) Increases oxygen levels
D) Enhances reproduction
7. What material do acid rain attack in buildings?
A) Steel
B) Calcium carbonate
C) Wood
D) Glass
8. How does acid rain affect soil?
A) Decreases its acidity
B) Increases its acidity
C) Improves its nutrient content
D) Increases its temperature
9. What happens to trees and plants due to acid rain?
A) They grow taller
B) Their growth is limited
C) They become more colorful
D) They produce more fruits
10. Ozone consists of how many oxygen atoms?
A) Two
B) Three
C) Four
D) One
11. Where is the ozone layer primarily located?
A) Troposphere
B) Stratosphere
C) Mesosphere
D) Thermosphere
12. What does the ozone layer protect Earth from?
A) Infrared rays
B) Ultraviolet radiations
C) Gamma rays
D) Radio waves
13. What is a major cause of ozone depletion?
A) Carbon dioxide
B) Methane
C) Chlorofluorocarbons (CFCs)
D) Nitrogen oxides
14. What do CFCs release when they decompose?
A) Oxygen
B) Nitrogen
C) Chlorine free radicals
D) Carbon monoxide
15. What is the effect of ozone depletion on human health?
A) Improves skin health
B) Causes skin cancer
C) Enhances immunity
D) Reduces allergies
16. How can ozone depletion affect the food chain?
A) It disrupts plant life cycles
B) It improves crop yields
C) It decreases plant diversity
D) It has no effect
17. Which process involves burning solid waste?
A) Recycling
B) Composting
C) Incineration
D) Landfilling
18. At what temperature does incineration occur?
A) 200°C
B) 300°C
C) 650°C to 1100°C
D) 1500°C
19. What is the primary byproduct of incineration?
A) Solid waste
B) Ash
C) Plastic
D) Glass
20. What gases are produced during the incineration of waste?
A) Nitrogen and hydrogen
B) Oxygen and carbon
C) Dioxins and carbon monoxide
D) Helium and neon
21. Which of the following is a toxic effect of acid rain?
A) Improves plant growth
B) Leaches heavy metals into water
C) Purifies soil
D) Enhances biodiversity
22. Acid rain can lead to the accumulation of which metals in the human body?
A) Calcium and magnesium
B) Lead and mercury
C) Sodium and potassium
D) Zinc and copper
23. Which region is most affected by ozone layer depletion?
A) Equator
B) Polar regions
C) Mountain regions
D) Coastal areas
24. What does a decrease in ozone concentration lead to?
A) More plant growth
B) Increased UV radiation
C) Improved air quality
D) Decreased temperatures
25. How does acid rain directly affect leaves of plants?
A) Enhances photosynthesis
B) Damages them
C) Protects them from diseases
D) Increases their size
26. What happens to the buildings made of marble due to acid rain?
A) They shine more
B) They become dull and eroded
C) They become stronger
D) They gain value
27. How does acid rain affect aquatic life?
A) Improves oxygen levels
B) Harms fish and other organisms
C) Promotes algae growth
D) Decreases water temperature
28. Which of the following is a consequence of ozone depletion?
A) Increased food production
B) Changes in wind patterns
C) Decreased respiratory diseases
D) More rainfall
29. Acid rain affects the growth of which type of vegetation?
A) Only small plants
B) All types of crops
C) Only trees
D) None
30. Which type of waste is most reduced by incineration?
A) Organic waste
B) Inorganic waste
C) Solid waste
D) Liquid waste
Answer Key:
- B
- B
- B
- B
- A
- B
- B
- B
- B
- B
- B
- B
- C
- C
- B
- A
- C
- C
- B
- C
- B
- B
- B
- B
- B
- B
- B
- B
- B
- C