Hydrocarbons
A) typically contain other elements besides carbon and hydrogen.
B) occur only in particulate forms.
C) are released into the atmosphere primarily through natural processes.
D) cause substantial health problems in cities with high levels of air pollution.
Answer: C
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Critical Thinking
In the accompanying figure, which U.S. expenditure in 2008 is equal to the amount of money needed to protect tropical forests?
What will be an ideal response?
Which station has the driest air? Look for the station with the lowest dew point. What is the name of the city, and what is the dew point? Which type of air mass is over this city?
Use an atlas to identify the weather station:
Why is it not completely accurate to describe the energy coming from the Sun as visible radiation?
What will be an ideal response?
The summer characteristics of a maritime polar air mass is
A) mild and humid. B) cool and dry. C) warm and humid. D) warm and dry. E) very hot and dry.