Based on temperature, the atmosphere is divided into
A) nitrogen, oxygen, argon.
B) two functional areas that absorb radiation from the Sun.
C) four regions: ranging from the troposphere to the thermosphere.
D) two broad regions.
C
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As lava cools and contracts, geometric columnar joints may form
a. True b. False
Which of the following features look like fossils but are not?
A. footprints from dinosaurs and other creatures B. burrows excavated by worms and other creatures and filled by other sediment C. dark minerals that grow in branching patterns D. leaves and other plants formed on land E. All of these are fossils.
The largest wind-generated waves tend to be associated with the ________
A) equatorial doldrums B) horse latitudes C) polar regions D) trade winds E) westerlies
Clouds form if air is ________
A) cooled to the dew point B) below freezing C) stable D) unstable E) windy