Explain why the dew point temperature provides a better indication of the actual amount of water vapor in the air than relative humidity
What will be an ideal response?
ANSWER: Students need to demonstrate knowledge that the relative humidity does not represent the amount of water vapor in the air, but rather how close the air is to being saturated, which is why it is not a good indicator of humidity. In contrast, the dew point is a measure of the amount of water vapor in the air. High dew points indicate high water vapor content; low dew points, low water vapor content. The addition of water vapor to the air increases the dew point; removing water vapor lowers it.
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Most of the damage from Hurricane Hugo was associated with:
a. wind damage to buildings in the storm's path b. flooding of coastal cities c. destruction of coral reefs and wildlife habitat d. wave erosion of beaches, roads, and buildings along the shore
Deposits of which of the following minerals would never be considered an ore?
A) quartz B) galena C) chalcophyrite D) hematite
This photograph shows light-colored granite and darker diorite (both igneous rocks). Which of the following statements is true?
A) The light-colored unit is younger because granite is more continental than diorite.
B) The diorite is older because its weathered surfaces are darker.
C) The granite is younger because it crosscuts the diorite.
D) All of these are correct.
Which of the following reduces the risk of heart disease and colon cancer, maintains joints and tendons, and reduces depression, stress, and anxiety?
A) insulin resistance B) desk jobs, television, and the internet C) exercise D) metabolic syndrome