What percentage of Africans live in sub-Saharan Africa? * a less than 10%
b about 50%
c about 65%
d about 85%

7. according to the theory of isostasy, which statement must be true? a. the asthenosphere is denser than the lithosphere. b. the asthenosphere has the same density as the lithosphere. c. the lithosphere has the same density as the core. d. the lithosphere is denser than the asthenosphere.

Nuclear experimentation is a major global issue that affects relationships between countries. describe why countries try to limit the testing of nuclear weapons.

At which boundary does subduction stop occurring, resulting in a mountain range?