Metallic ore deposits are most likely to form when ____
a. small-scale motions of hot spots alter cratonic rocks
b. continents rift apart.
c. plants decompose in anaerobic conditions
d. plants decompose in aerobic conditions
e. metals are precipitated from and concentrated by cooling magma
e
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Explain the advantages and disadvantages of the raster data model vs. the vector data model.
What will be an ideal response?
Of the following regions, this one has the lowest record-high temperatures, on average,
A) Southwest. B) California. C) Great Plains. D) New England. E) the South.
As a wave moves to shallower water it stops being a deep-water wave when the depth equals (where L = wavelength) ________.
A. L/200 B. L/20 C. L/2 D. L/0.2 E. L/g
One key advantage of hydropower is that ________
A) it is widely available throughout the world B) it is the most economically feasible of all the renewable energy resources C) it does not rely on fossil fuel to generate electricity D) it is the oldest of the renewable energy resources E) it produces no negative environmental effects