In mountain streams that are steep with high stream velocities, which pattern of erosion is the most common?
A. Channel bed and channel sides are eroded equally.
B. Channel bed is eroded faster than the channel sides.
C. Channel sides are eroded faster than channel bed.
Answer: B
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A) earlywood. B) latewood. C) varves. D) speleothems.
Which of the following best describes air pollution?
A) Both natural and anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. B) Solely anthropogenic gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. C) Solely natural gases, particles, and other substances in amounts that cause damage to the environment or are harmful to humans. D) A distinct class of gases, particles, and other substances that the EPA has deemed worthy of regulating.
Describe in detail the path that a drop of water might take from striking Earth's surface as a raindrop to reappearing at the surface in a spring
A Santa Ana (or Chinook or Foehn) wind is a ________
A) very dry, warm wind flowing down a mountain slope B) wind that is common to the world's deserts C) cold, damp wind blowing off a snow field D) wind associated with a blizzard