In general, global primary productivity A) increases toward ...

[SGallaher96]

In general, global primary productivity
 
  A) increases toward the equator.
  B) decreases toward the equator.
  C) increases toward the poles.
  D) is greatest in North America.

Question 2

Smoking contributes to the risk of all of the following, except
 
  A) lung cancer.
  B) heart disease.
  C) COPD and other related lung diseases.
  D) malaria and tuberculosis.

[bdobbins]

Answer to Question 1

A

Answer to Question 2

D