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7th Grade

GEOGRAPHY MCQs

Total Questions : 170 | Page 2 of 17 pages
Question 11. The large number of organisms can die if there is
  1.    low level of oxygen
  2.    low level of carbon dioxide
  3.    low level of methane
  4.    low level of ethane
 Discuss Question
Answer: Option A. -> low level of oxygen
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 12. The Chlorofluorocarbon (CFC) remains in atmosphere for
  1.    22 to 111 years
  2.    30 to 50 years
  3.    80 to 90 years
  4.    10 to 20 years
 Discuss Question
Answer: Option A. -> 22 to 111 years
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 13. The causes of air pollution includes
  1.    chlorofluorocarbon
  2.    cars and motor vehicles
  3.    power plants and industries
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 14. The air condition equipment, leaking refrigerators, spray cans and burning of plastic foams release
  1.    carob-oxides
  2.    herbicides
  3.    pesticides
  4.    chlorofluorocarbon
 Discuss Question
Answer: Option D. -> chlorofluorocarbon
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 15. The continent whose rivers are most polluted in world is
  1.    Africa
  2.    Asia
  3.    North America
  4.    South America
 Discuss Question
Answer: Option B. -> Asia
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 16. According to World Health Organization, the percentage of the deaths due to environmental factors is
  1.    85%
  2.    25%
  3.    50%
  4.    65%
 Discuss Question
Answer: Option B. -> 25%
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 17. The waste which takes 3 to 4 weeks to be decomposed in landfill is
  1.    banana peel
  2.    wooden log
  3.    disposable diaper
  4.    leather shoe
 Discuss Question
Answer: Option A. -> banana peel
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 18. The waste which takes 80 to 100 years to be decomposed in landfill is
  1.    paper bag
  2.    plastic bag
  3.    aluminum can
  4.    disposable diaper
 Discuss Question
Answer: Option C. -> aluminum can
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 19. The waste which takes 1 month to be decomposed in landfill is
  1.    leather shoe
  2.    banana peel
  3.    plastic bag
  4.    paper bag
 Discuss Question
Answer: Option D. -> paper bag
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 20. The layer of atmosphere that absorbs ultraviolet rays from Sun is called
  1.    troposphere
  2.    ozone layer
  3.    thermosphere
  4.    mesosphere
 Discuss Question
Answer: Option B. -> ozone layer
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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