The number of organisms present in the surface water above the ocean floor is called ________
A) destruction
B) dilution
C) ecology
D) erosion
E) productivity
E
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Which of the following locations would have the lowest average air pressure?
One of the keys to helping the people who live in the vast slums surrounding major cities in the developing world is to
A) grant them lawful titles to the land where they live. B) offer them transportation to the countryside, where they will more likely find jobs. C) help them identify distant family members and help them relocate to the cities. D) help them repay student loans used.
One characteristic of a "great circle" is that it must pass through both the north and south poles
Indicate whether the statement is true or false
Two countries share the area of a large tropical island. Flying along the border of the two nations, you notice that to the left of the border, one nation is heavily deforested and eroded, while in the nation on the right the area is richly vegetated
. Compared to the country on the left, the country on the right is more likely to have A) higher rates of human population growth. B) higher rates of poverty. C) greater political and economic stability. D) greater reliance upon natural ecosystems for trade.