What is the average residence time water stays in the ocean?
A) about 4,100 years
B) only 9 days
C) forever
D) approximately 3 million years
A
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The current U.S. economic system uses a high-consumption, high-waste approach that depends upon ever increasing economic growth. Why is this approach unsustainable in the long run?
What will be an ideal response?
The line that shows the successive positions of paleopoles in the past is called:
a. paleopole line b. apparent polar-wander path c. polar shift line d. paleopole path
Soil undergoes chemical deterioration when its ____________________ are depleted causing its productivity to decrease
Fill in the blank(s) with correct word
What region of the United States is best suited for producing wind used for energy?
A) Southwest B) Northeast C) Southeast Mountains D) Northwest E) Western Mountains