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Environmental Issues
NEET Biology • 10 questions • Free on ExamBattle
Practice Questions
Q1
The Montreal Protocol (1987) was signed to reduce:
- A. Carbon dioxide emissions
- B. Ozone-depleting substances (CFCs)
- C. Nuclear waste
- D. Ocean pollution
Q2
Eutrophication of water bodies is caused by excessive levels of:
- A. Heavy metals
- B. Nutrients (nitrogen and phosphorus)
- C. Dissolved oxygen
- D. pH changes
Q3
The concept of "biomagnification" refers to:
- A. Microorganisms multiplying in soil
- B. Increase in concentration of pollutants at each trophic level
- C. Magnification of genetic material
- D. Growth of organisms due to pollution
Q4
Which gas is primarily responsible for acid rain?
- A. CO₂ only
- B. SO₂ and NOₓ
- C. Ozone (O₃)
- D. Methane (CH₄)
Q5
Minamata disease in Japan was caused by:
- A. Lead poisoning
- B. Mercury poisoning from industrial effluent
- C. Cadmium poisoning
- D. Arsenic poisoning
Q6
The main cause of depletion of the ozone layer is:
- A. CO₂ emissions
- B. Chlorofluorocarbons (CFCs)
- C. Nitrogen oxides only
- D. UV radiation directly
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