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MCQs

Total Questions : 560 | Page 53 of 56 pages
Question 521. In atmosphere, methane constitutes about
  1.    1.2 ppm
  2.    1.8 ppm
  3.    6 ppm
  4.    7 ppm
 Discuss Question
Answer: Option B. -> 1.8 ppm
Answer: (b).1.8 ppm
Question 522. Yound Dryas' occurred for a period of about
  1.    300 years
  2.    1500 years
  3.    900 years
  4.    1000 years
 Discuss Question
Answer: Option B. -> 1500 years
Answer: (b).1500 years
Question 523. Slash and burn agriculture is clearing of foreste land for
  1.    Growing the crops
  2.    Industries
  3.    Food production
  4.    Relailing
 Discuss Question
Answer: Option A. -> Growing the crops
Answer: (a).Growing the crops
Question 524. Most visible effect of global warming can be seen in
  1.    Arctic ocean
  2.    Pacific ocean
  3.    Antarctic ocean
  4.    Indian ocean
 Discuss Question
Answer: Option A. -> Arctic ocean
Answer: (a).Arctic ocean
Question 525. Altitude of troposphere is approximately
  1.    18 to 40 km
  2.    20 to 30 km
  3.    10 to 15km
  4.    90 to 100 km
 Discuss Question
Answer: Option C. -> 10 to 15km
Answer: (c).10 to 15km
Question 526. Biomass is available in form of
  1.    Liquid Waste
  2.    Plastic Waste
  3.    biodegradable waste
  4.    Urea
 Discuss Question
Answer: Option C. -> biodegradable waste
Answer: (c).biodegradable waste
Question 527. 'UNCED' held at Rio de Janeiro in
  1.    1992
  2.    1980
  3.    1988
  4.    1989
 Discuss Question
Answer: Option A. -> 1992
Answer: (a).1992
Question 528. UV' stands for
  1.    Ultra volatile
  2.    Ultra-violet radiation
  3.    Ultra Viral
  4.    Ultra visual
 Discuss Question
Answer: Option B. -> Ultra-violet radiation
Answer: (b).Ultra-violet radiation
Question 529. Infrared radiation is also known as:
  1.    Light
  2.    Ultra-violet radiation
  3.    Long Wave radiations
  4.    Short Wave radiations
 Discuss Question
Answer: Option C. -> Long Wave radiations
Answer: (c).Long Wave radiations
Question 530. Green house gases absorb thermal radiation emitted from the
  1.    Oceans
  2.    Earth's Core
  3.    Earth's Surface
  4.    Forests
 Discuss Question
Answer: Option C. -> Earth's Surface
Answer: (c).Earth's Surface

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