A). cactuses;
B). watershed;
C). river;
D). stability;
E). desert;
F). lake;
G). rainforest;
H). Pacific;

Fact 1: Conserving water can be used for survival in a dry environment. Fact 2: By definition, deserts are dry areas. Given the two facts above, conserving water can be used for survival in which region?
Answer:
E).