No work by gravity occurs for a satellite when it is
A. in circular orbit.
B. in an elliptical orbit.
C. both of these
D. none of the above
Answer: A
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Identify the drainage pattern for the portion of the topo map that is generally covered by the Kalamazoo moraine (southwest part of map). Explain what evidence you used to determine this.
A sinuously curving, narrow ridge of coarse sand and gravel is called an esker. Eskers form along the channel of a meltwater stream that flows beneath a glacier, in an ice tunnel, or between ice walls beneath the glacier. As a glacier retreats, the steep-sided esker is left behind in a pattern roughly parallel to the path of the glacier. What will be an ideal response?
Christianity diffused
A) through migration diffusion. B) through expansion diffusion. C) through both migration and expansion diffusion. D) entirely by missionaries. E) entirely by hierarchical diffusion.
In 2006, China began to dramatically increase its involvement with Africa, much to the chagrin of the western world and some Africans.Why is China interested in Africa, and what complaints do Africans have about China's advance?
The total amount of living material in an ecosystem is referred to as the ____________________
Fill in the blank(s) with correct word