How do continents grow? What material is added to them and how? What will be an ideal response?
Continents grow by continental accretion. Eroded older continental crust, plutonic and volcanic rocks
from convergent plate boundaries and small terranes, fragments of seamounts, island arcs, and small
pieces of continents that were carried on oceanic plates collide with the continents and cause them to
grow.
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Wind erodes rock by
A) applying the force of air molecules to rock. B) applying water vapor molecules to rock. C) grinding airborne sediments against rock and carrying away small fragments. D) none of these
What is the structure of carbon dioxide an example of?
a. An element b. An atom c. A compound d. A polar molecule
For the six states you listed in Table ? that use the least amount of
water, which factor do you think is more closely related to water use, the population size or the area? Explain. What will be an ideal response?
States that use the least water Population rank Area rank Maine 40 38 Rhode Island 42 48 South Dakota 45 15 Vermont 47 42 North Dakota 46 16 New Hampshire 41 43
What are the two elements that give ocean water its “saltiness”?
A. sodium and oxygen B. oxygen and nitrogen C. nitrogen and chlorine D. sodium and nitrogen E. chlorine and sodium