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MCQs

Total Questions : 424 | Page 41 of 43 pages
Question 401. When green plants transforms light energy in to chemical energy; this process is known as
  1.    photosynthesis
  2.    osmosis
  3.    electrolysis
  4.    Evapo-transpiration
 Discuss Question
Answer: Option A. -> photosynthesis
Answer: (a).photosynthesis
Question 402. WWF stands for
  1.    World wide fund for nations
  2.    World wide foundation for nature
  3.    World wide fund for natural Ecosystem
  4.    World widen fund for nature
 Discuss Question
Answer: Option B. -> World wide foundation for nature
Answer: (b).World wide foundation for nature
Question 403. What is the diameter of Clay particles?
  1.    0.001-0.004 mm
  2.    less than 0.002mm
  3.    0.05-0.1mm
  4.    0.02-2.00mm
 Discuss Question
Answer: Option B. -> less than 0.002mm
Answer: (b).less than 0.002mm
Question 404. What is the loss of topsoil from wind and water?
  1.    Eutrophication
  2.    Soil erosion
  3.    Desertification
  4.    Urbanization
 Discuss Question
Answer: Option B. -> Soil erosion
Answer: (b).Soil erosion
Question 405. The good balance in the pore spaces between sand and clay gives a supply of
  1.    Air
  2.    water
  3.    Mineral
  4.    Both a and b
 Discuss Question
Answer: Option D. -> Both a and b
Answer: (d).Both a and b
Question 406. Which horizon contains many loose pieces of rocks, broken off from the parent rock below by weathering?
  1.    Horizon A
  2.    Horizon C
  3.    Horizon B
  4.    Horizon D
 Discuss Question
Answer: Option B. -> Horizon C
Answer: (b).Horizon C
Question 407. The amount of air present in a soil is known as
  1.    Aeration
  2.    Moisture
  3.    Humidity
  4.    Soil Texture
 Discuss Question
Answer: Option A. -> Aeration
Answer: (a).Aeration
Question 408. The removal of soluble minerals and organic matters from the top soil by rain water is known as
  1.    Leaching
  2.    Decomposing
  3.    Transpiration
  4.    Draining
 Discuss Question
Answer: Option A. -> Leaching
Answer: (a).Leaching
Question 409. The amount of water trapped in pore spaces is known as
  1.    Aeration
  2.    Drainage
  3.    Decomposing
  4.    Disposal
 Discuss Question
Answer: Option B. -> Drainage
Answer: (b).Drainage
Question 410. What is called for the illegal collection of indigenous plants by corporations ho patent them for there own use?
  1.    Biopiracy
  2.    Biomagnifications
  3.    Biodegradation
  4.    Biodiversity
 Discuss Question
Answer: Option A. -> Biopiracy
Answer: (a).Biopiracy

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