Igneous rocks are classified by
a. composition and texture.
b. composition and age.
c. texture and presence of fossils.
d. texture and size.

:calculate the sum of the interior angles of a 13-sided polygon.

The two types of plains are coastal plains and lowland plains

Since 1980, which three countries have either attacked or been attacked by iraq? a. iran, turkey, united states b. iran, israel, jordan c. iran, kuwait, united states d. iran, saudi arabia, egypt