According to the flood frequency curve, what is the return interval for a flood the magnitude of the spring 1997 flood?
What will be an ideal response?
400 year flood
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Rising ocean levels are due to
A. melting of ice on land that flows into the ocean. B. warmer water. C. both of these D. none of the above
The higher the temperature of an object, the
A. cooler it becomes. B. longer the wavelengths it radiates. C. shorter the wavelengths it radiates. D. none of the above
Within the Northern Hemisphere, salt marshes form ________, whereas mangrove swamps form ________
A) within the tropics; at high latitudes B) north of 30°; within the tropics C) in the Arctic; in the midlatitudes D) south of 30°; north of 30° E) near subtropical high pressure systems; in areas affected by the NE trade winds
Judge the following sentence according to the criteria given below: Andesitic volcanic eruptions are usually less explosive and destructive than basaltic eruptions BECAUSE andesite magma is more viscous than basalt magma and contains a higher gas
content. A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct but the reason is incorrect. D) The assertion is incorrect but the reason is correct. E) Both the assertion and the reason are incorrect.