Which phrase best describes subduction?

A.

sinking of one tectonic plate under another

B.

movements of tectonic plates across the earth's surface

C.

collision between two tectonic plates

D.

spreading apart of two tectonic plates

Why do scientists study deuterium to determine the origins of water on Earth? A. Deuterium only comes from outside the planet. B. Deuterium reacts with oxygen to form water just like hydrogen does. C.

Which of the items below describes a way that the physical environment affects people? Choose all that apply. a. Chad, who lives in the Kansas plains, is the youngest of five children. b.

Why dont the presents shape of the continents fit perfectly in to a supercontinent?

Why do lessons about rocks always begin with igneous rocks?

What is the nearest plate boundary to Washington State? What type of boundary is this?

What percentage of water vapor is found in the air? a. 0 to 1 percent b. 0 to 4 percent c. 0 to 8 percent d. 0 to 10 percent

In triangle ABC m∠A 25 m∠b = 55 and c=25 find b round your answer to the nearest tenth A. 10.7 B. 12.9 C. 48.5 D. 20.8

Magma that reaches earth surface and flows from volcanoes

The gray wolf is a predator that keeps the herd numbers of elk and deer populations in check. With the disappearance of wolves, elk and deer populations exploded, which led to overgrazing of plants, especially in riparian zones.

What physical characteristics make the Midwest particularly good for farming?