Chemical weathering is most rapid in areas that are
a. hot and dry.
c. cold and dry.
b. warm and wet.
d. cool and wet.

What is the greatest challenge to the palestinian authority government in israel? a) territorial size b) lack of citizen participation c) disputes among parties d)threats from arab forces

Where do most people in arabia and iraq live? a. in the fertile crescent b. in the rub, al-khali c. in cities d. in and around mecca

What are the most populous and least areas of russia and why are some areas more heavily populated than others