Which two types of rock are plates on the crust primarily composed of? A. Basalt and Granite
B. Basalt and Obsidian
C. Granite and Bauxite
D. Obsidian and Bauxite

Awatershed is a piece of land that drains water into a particular stream, lake, or river. which of the following factors often negatively impacts the water quality in a watershed? a.) wetlands b.) pollution c.) irrigation d.)rainfall

The organ that has two atria and one ventricle is the

Match the following items. 1 1 (4,4) 2. (-4,-2) 3. (3.-6) 4. (-4, 6) 5. (1,5)