Greater acceleration occurs for a satellite in elliptical orbit when

A. farthest from Earth.
B. closest to Earth.
C. the same at both locations
D. none of the above


Answer: B

Environmental & Atmospheric Sciences

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Water vapor is a greenhouse gas

Indicate whether this statement is true or false.

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The question of whether we have passed the peak of availability for oil continues to be debated among energy experts

However, if we define availability to mean oil that can be extracted by conventional technologies and low prices, there is no debate. With this knowledge, discuss two specific oil-use strategies that could be employed to move toward a more sustainable lifestyle.

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Which of the following is not an example of a biotic component of an ecosystem?

A) plants B) mineral nutrients C) decomposers D) carnivores E) herbivores

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