AP BIOLOGY

PHOTOSYNTHESIS

CAM PLANTS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
How much rain falls in the desert?
A
10 inches
B
more than 10 inches
C
less than 10 inches
D
none at all
Explanation: 

Detailed explanation-1: -Most experts agree that a desert is an area of land that receives no more than 25 centimeters (10 inches) of precipitation a year. The amount of evaporation in a desert often greatly exceeds the annual rainfall. In all deserts, there is little water available for plants and other organisms.

Detailed explanation-2: -Rainfall is lowest on the Atacama Desert of Chile, where it averages less than 1.5 cm. Some years are even rainless. Inland Sahara also receives less than 1.5 cm a year. Rainfall in American deserts is higher-almost 28 cm a year.

Detailed explanation-3: -If rain falls it stays dry in deserts because the sand absorbs the water.

Detailed explanation-4: -Lane notes that no rainfall has ever been recorded at Calama in the Atacama Desert, Chile.

There is 1 question to complete.