The heat index (HI) is used by the National Weather Service, and combines ____ with ____ to determine an apparent temperature

a. dew point temperature; mixing ratio
b. mixing ratio; saturation vapor pressure
c. actual vapor pressure; specific humidity
d. air temperature; relative humidity
e. air temperature; specific humidity


ANSWER: d

Environmental & Atmospheric Sciences

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Indicate whether the statement is true or false

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Thousands of cases of lung cancer occur in a two-year period in a city outside of Kentucky, at rates that are double that seen in other cities in the United States. Scientists working in that region assume that

A) there is something unique to the region that causing these unusually high rates. B) the medical reports from the area are incorrect. C) government policies and regulations are most likely the cause of this increase in cancer. D) this is most likely just an unlucky occurrence.

Environmental & Atmospheric Sciences

In 1902 the port city of St. Pierre on the island of Martinique was destroyed by a ________.

A. pyroclastic flow B. mud flow C. tsunami D. lava flow E. poison gas cloud

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What is the approximate C-O-C bond angle in noncyclic ethers?

A) 90° B) 109° C) 120° D) 180°

Environmental & Atmospheric Sciences