In which area does clean drinking water present the biggest problem?
the brazilian rain forest
london, england
mexico city
washington, d. c.

The primary agent of contact metamorphism is

All of the following are reasons why deserts extremely susceptible to wind erosion except a. they lack major root systems b. they contain thin, dry soil c. they have very few plants and trees d. they are extremely hot and lack water

Who was the first women to reach in space and which country she live?