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MCQs

Total Questions : 424 | Page 4 of 43 pages
Question 31. 1.2 Gt of carbon, entering atmosphere in fom of
  1.    Nitrogen gas
  2.    Oxygen gas
  3.    Carbon monoxide
  4.    Carbon dioxide
 Discuss Question
Answer: Option D. -> Carbon dioxide
Answer: (d).Carbon dioxide
Question 32. What is an average annual deforestation of tropical forests?
  1.    1% per year
  2.    3% per year
  3.    8% per Year
  4.    9% per year
 Discuss Question
Answer: Option A. -> 1% per year
Answer: (a).1% per year
Question 33. 11% of total forest consists of
  1.    Temperate region
  2.    Tropical forest
  3.    Sub tropical forest
  4.    Tiaga
 Discuss Question
Answer: Option A. -> Temperate region
Answer: (a).Temperate region
Question 34. Total area covered by forest is one-third of the
  1.    Coastal areas
  2.    Mountains
  3.    Oceans
  4.    World's land area
 Discuss Question
Answer: Option D. -> World's land area
Answer: (d).World's land area
Question 35. In 1990s, an average forest plantations grew, approximately
  1.    1000 km²per year
  2.    3000 km²per year
  3.    7000 km²per year
  4.    8000 km²per year
 Discuss Question
Answer: Option B. -> 3000 km²per year
Answer: (b).3000 km²per year
Question 36. 9% of forest worldwide are:
  1.    Tropical Forest
  2.    Sub Tropical Forest
  3.    Temperate Forest
  4.    Tiaga
 Discuss Question
Answer: Option B. -> Sub Tropical Forest
Answer: (b).Sub Tropical Forest
Question 37. Variety of life forms, expressed as a number of species in an area, known as
  1.    Biodiversity
  2.    Ecological Diversity
  3.    Ecosystem
  4.    All of Above
 Discuss Question
Answer: Option A. -> Biodiversity
Answer: (a).Biodiversity
Question 38. Relative abundance of species is known as
  1.    Species Diversity
  2.    Species Evenness
  3.    Species Evenness
  4.    Species Dominance
 Discuss Question
Answer: Option C. -> Species Evenness
Answer: (c).Species Evenness
Question 39. Genes are made up of complex chemical compound known as
  1.    RNA
  2.    DNA
  3.    Genotype
  4.    Biodiversity
 Discuss Question
Answer: Option B. -> DNA
Answer: (b).DNA
Question 40. Combined impact of deforestation rate, approximately
  1.    350 000 km² per year
  2.    150 000 km² per year
  3.    550 000 km² per year
  4.    850 000 km² per year
 Discuss Question
Answer: Option B. -> 150 000 km² per year
Answer: (b).150 000 km² per year

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