What carved this U-shaped valley?
A) A rapidly downcutting river
B) A slowly downcutting river
C) Wind
D) Glacier
D) Glacier
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Beverage container deposit-refund programs
A. are lobbied against by beverage manufacturers. B. reduce litter. C. encourage consumers to recycle beverage containers. D. All of these statements are correct.
The primary cause of soil erosion is ________
A) no-till agriculture B) crop rotation C) strip cropping D) use of crop cover E) over cultivation
After the explosion of the Deepwater Horizon oil-drilling platform in 2010, Scientists estimate that BP removed about ________ of the oil, most of it recovered directly from the well, burned at sea, or skimmed by boats
A) 10% B) 25% C) 40% D) 75% E) 90%
Potential energy is ________ energy.
A. Stored B. Electrical C. Heat D. Latent E. Motion