The world's desert regions ____. a. have always had arid ...

[crobinson2013]

The world's desert regions ____.
 
 a. have always had arid climates
  b. are 99 covered by active sand dunes
  c. are fragile environments
  d. have no vegetation

Question 2

On land, a traveler would notice a decrease in primary productivity by traveling from the tropics to the higher latitudes.
 
 
  Indicate whether the statement is true or false

[SAUXC]

Answer to Question 1

c

Answer to Question 2

T

[crobinson2013]

Excellent

[nguyenhoanhat]

Thanks for the timely response, appreciate it