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Author Question: Of the main nutrients in the biosphere, the one that is fixed inside nodules in certain plant roots ... (Read 88 times)

KWilfred

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on: Jul 13, 2018
Of the main nutrients in the biosphere, the one that is fixed inside nodules in certain plant roots is ________.
 
  A) carbon
  B) nitrogen
  C) oxygen
  D) hydrogen
  E) calcium

Question 2

Which of the following is NOT a source of atmospheric oxygen in the oxygen cycle?
 
  A) The weathering of rocks
  B) The burning of fossil fuels
  C) Water from plant transpiration
  D) Decomposition of water during photosynthesis
  E) Decomposition of nitrogen by solar energy
McKnight's Physical Geography: A Landscape Appreciation ¦ Hess, Tasa ¦ 12th Edition
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kaillie

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Reply #1 on: Jul 13, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: E


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