Which of the following is not one of the three types of rock?
a. igneous
b. sedimentary
c. magma
d. metamorphic

How does water pollution affect the environment

Which of the following is evidence to the past existence of glaciers?

Why did the belgian parliament pass laws to decentralize its government? a. to increase trade with neighboring luxembourg b. to decrease the political power enjoyed by the flemish c. to enable belgium to join the european union d. to reduce tensions between belgium's two main ethnic groups