Which of the following is NOT true about the unsaturated zone?

A) pore spaces in the unsaturated zone contain air with no water
B) it overlies the water table
C) it overlies the saturated zone
D) there is an unsaturated zone below some rivers

Whether or not an organism is considered a pest is largely subjective.

What is an outcome of the general perception that flowers are beautiful? 

A)  It is evidence that wildflowers have ecological importance. 
B)  It is evidence that wildflowers have medical importance. 
C)  It is evidence that wildflowers have genetic importance. 
D)  It is evidence that wildflowers have aesthetic importance.