The total population of sub-Saharan Africa is

A) just over two billion
B) just below one billion
C) 500 million
D) 1.5 billion
E) 250 million


B) just below one billion

Environmental & Atmospheric Sciences

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Of the reformer countries in Southeast Asia, Timor Leste has the highest per capita GNI

Indicate whether the statement is true or false

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Evaporative coolers are primarily used in climates where the summers are?

a. ?hot and humid. b. ?hot and dry. c. ?cold and humid. d. ?cold and dry. e. ?moderate.

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Which of the following is the BEST indicator of the actual amount of water vapor in the air??

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

Environmental & Atmospheric Sciences

The wind-chill temperature index

A) is a factor of actual air temperature and wind speed. B) considers the effects of physical activity. C) uses the same variables as the heat index does. D) assumes people are wearing a basic protective clothing. E) takes into account infrared solar radiation.

Environmental & Atmospheric Sciences