The water conditions that produce an oligotrophic aquatic ...

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The water conditions that produce an oligotrophic aquatic community most likely has
 
  A) high levels of nutrients and high levels of oxygen.
  B) low levels of nutrients and low levels of oxygen.
  C) high levels of nutrients and low levels of oxygen.
  D) low levels of nutrients and high levels of oxygen.

Question 2

Increased availability of contraceptives in very poor nations is unlikely to decrease family size because
 
  A) families depend upon children for labor and support when the parents become old.
  B) infant and childhood mortality rates are already keeping family sizes small.
  C) the increased use of industry and technology has already decreased family size.
  D) poor families are already small because parents cannot afford to feed and house more than one or two children.

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Answer to Question 1

D

Answer to Question 2

A

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