Environmental Chemistry(General Knowledge > General Science ) Questions and Answers

Question 1. Which are two elements considerable enrichment in soil ?
  1.    C
  2.    N
  3.    He
  4.    Both A & B
Explanation:-
Answer: Option D. -> Both A & B
Question 2. Which of the following is a fossil fuel?
  1.    Natural gas
  2.    Nuclear
  3.    Hydrogen
Explanation:-
Answer: Option A. -> Natural gas
Question 3. Gases such as water vapour and carbon dioxide that trap heat near Earth are known as
  1.    Blanket gases
  2.    Greenhouse gases
  3.    Proxy gases
  4.    Warming gases
Explanation:-
Answer: Option B. -> Greenhouse gases
Question 4. Which of the following is NOT a greenhouse gas?
  1.    CO2
  2.    N2
  3.    CH4
  4.    H2O
Explanation:-
Answer: Option B. -> N2
Question 5. Which of the following sets of evidence supports global warming?
  1.    CO2 levels rising
  2.    Sea Levels rising
  3.    Glacier mass decreasing
  4.    All of the Above
Explanation:-
Answer: Option D. -> All of the Above
Question 6. Harmful ultraviolet radiation from the Sun is absorbed by
  1.    Clouds
  2.    Ozone molecules
  3.    Soil
  4.    Water
Explanation:-
Answer: Option B. -> Ozone molecules
Question 7. Chemical responsible for ozone depletion is
  1.    CO2
  2.    NO2
  3.    peroxyacetyl nitrate (PAN)
  4.    Chlorofluorocarbons (CFCs)
Explanation:-
Answer: Option D. -> Chlorofluorocarbons (CFCs)
Question 8. Which among the following is NOT a particulate pollutant?
  1.    Smoke
  2.    Smog
  3.    CO
  4.    Dust
Explanation:-
Answer: Option C. -> CO
Question 9. Photochemical smog is also known as
  1.    Industrial smog
  2.    London smog
  3.    Oxidizing smog
  4.    Reducing smog
Explanation:-
Answer: Option C. -> Oxidizing smog
Question 10. Which among the following is NOT a constituent of photochemical smog?
  1.    formaldehyde
  2.    acrolein
  3.    peroxyacetyl nitrate (PAN)
  4.    SO2
Explanation:-
Answer: Option D. -> SO2
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