Cumulonimbus clouds indicate unstable atmospheric conditions. What stops the upward growth and causes the top of a cumulonimbus cloud to flatten out into an anvil?
What will be an ideal response?
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Even if rock layers are presently folded, what law tells geologists that the rock layers were deformed after deposition?
On average, the atmosphere absorbs roughly this percentage of the solar radiation that reaches the top of the atmosphere:
A) 5 percent. B) 14 percent. C) 25 percent. D) 50 percent.
What are the conditions that lead to lake-effect snow? Why does the effect only extend for a few miles?
What will be an ideal response?
Which of the following statements about pH is true?
A) The pH scale measures the concentration of hydrogen ions in a solution. B) A pH of 3 is alkaline, a pH of 10 is acid. C) An acid is a substance that combines with a hydrogen in solution. D) On average, the pH of the ocean is moderately acidic.