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Author Question: Per capita emissions of total greenhouse gases are highest in A) more-developed countries (MDCs). ... (Read 69 times)

tingc95

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Per capita emissions of total greenhouse gases are highest in
 
  A) more-developed countries (MDCs).
  B) less-developed countries (LDCs).
  C) neither LDCs and MDCs; they are approximately equal.
  D) non-populated areas since greatest emissions associated with volcanic eruptions.

Question 2

Nitrogen (N2 ) is
 
  A) a key component of life, integrated into our bodies directly from the air.
  B) a product of the radioactive decay of a form of potassium in the crust.
  C) cycled through the environment via the activity of bacteria.
  D) now measured at 20.946 by volume in the homosphere.



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skipfourms123

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Answer to Question 1

A

Answer to Question 2

C




tingc95

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Reply 2 on: Jul 14, 2018
Gracias!


steff9894

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Reply 3 on: Yesterday
Excellent

 

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