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jackiemartini09 jackiemartini09
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6 years ago
Carbon is introduced into the atmosphere by
  all EXCEPT which of the following means?
  a. respiration
  b. diffusion
  c. burning of fossil fuels
  d. wind erosion of rocks
  e. tilling of soil

Question 2

Most of the earth's usable carbon is in its
  a. sedimentary rocks.
  b. atmosphere.
  c. biomass.
  d. oceans.
  e. mantle
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AzhanAzhan
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6 years ago
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6 years ago
Great answers, all of them were right
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