Soil air supplies plants and microorganisms with what gases ...

[jon_i]

Soil air supplies plants and microorganisms with what gases needed for life processes?
 a. nitrogen and helium
  b. oxygen and methane
  c. carbon dioxide and oxygen
  d. nitrogen and carbon dioxide

Question 2

Asking what effect stricter chlorofluorocarbon (CFC) controls in North America will have on the future size of the ozone hole over Antarctica is one example of analyzing a spatial interaction.
 a. True
  b. False
  Indicate whether the statement is true or false

[shailee]

Answer to Question 1

C

Answer to Question 2

True

[jon_i]

Thanks

[shailee]

Welcome