How did erosion shape this glacial feature? (Hint: It is bedrock.)
A) Frost wedging
B) Plucking
C) Abrasion
D) Plucking and abrasion
Answer: D
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Which of these statements about oil shale production is accurate?
A. Compared to conventional oil, shale oil production emits more CO2 per barrel. B. Compared to tar sands oil, shale oil production emits more CO2 per barrel. C. Compared to conventional oil, shale oil production causes less water pollution. D. Compared to conventional oil, shale oil production causes less air pollution.
We do not see stars in the daytime because
A. of the lack of contrast with moonlight. B. the Sun blocks their view. C. the solar wind obscures their view. D. they simply don't exist in the daytime part of the sky. E. sunlight overwhelms starlight.
In this landscape, the location that would be best for agricultural fields is probably
A) Location A.
B) Location B.
C) Location C.
D) Location D.
E) Location E.
The Roman Empire is thought to have fallen in part because of poisoning by
A) cadmium B) carbon monoxide C) selenium D) lead