Mountain valleys that are U-shaped are most likely the result of erosion by a valley glacier. Indicate whether the statement is true or false
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Domes and basins resulting from deformation ____
A)do not necessarily correspond with mountains or valleys B)always correspond with mountains or valleys C)both have strata dipping toward a central point D)both have strata dipping away from a central point E)both have oldest strata in the center
Totality is not completely dark during a lunar eclipse because
A. of light refracted by the Earth's atmosphere. B. the line between umbra and penumbra is not sharp. C. the Moon is not directly in the Earth's shadow. D. of tapering of sunlight due to the Sun's large size. E. of the Sun's corona.
In general, high poverty produces
A) high fertility and greater environmental damage. B) low fertility and greater environmental damage. C) high fertility and less environmental damage. D) low fertility and less environmental damage.
Which of the following is the correct way to write the formula of the compound formed between the barium ion and the sulfate ion?
A) Ba2(SO4)2 B) Ba2SO4 C) Ba(SO4)2 D) BaSO4