Wind moves sediment by
A. rolling sand grains along the surface.
B. carrying finer material, like dust and silt, in air currents.
C. bouncing sand grains along the surface.
D. All of these.
Answer: D
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Strip cutting of timber is a method of harvesting that
a. harvests trees singly or in small groups b. involves clearing trees along a contour of the land within a narrow corridor c. removes all trees from a very large area, with no attention to land contours d. is particularly damaging to the forest e. is promoted by logging companies because of the high profit margin
Which of the following is true of polyatomic ions?
A) All are anions. B) All are cations. C) The vast majority are anions. D) The vast majority are cations.
Differentiate between environmental science and environmentalism. Define each term and explain how they are similar and how they differ
What will be an ideal response?
In terms of mineral resources, recycling is ________ as raw materials become more ________ and ________ are more plentiful.
A. Slowly increasing; scarce; wastes B. Quickly decreasing; scarce; wastes C. Staying about the same; expensive; environmental laws D. Slowly decreasing; scarce; environmental laws E. Quickly increasing; expensive; environmental laws