Which of the following is correct regarding permafrost?
A) It develops where soil or rock temperatures are below freezing for at least two years.
B) It primarily occurs in areas covered with glaciers.
C) The surface layer of permafrost never thaws, even in the warm season.
D) It tends to occur at lower elevations in the midlatitudes than in the high latitudes.
A
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Toothed whales (Odontoceti) can search for prey using ____
A) echolocation B) sensitive organs that detect electric charge C) sensitive organs that detect water pressure D) bioluminescence
It is difficult to directly identify significant cloud and surface features on an infrared image when ____ differences are small
a. relative humidity b. air pressure c. wind d. precipitation e. temperature
Which of the following is associated with areas of karst topography?
A) caverns B) soluble rock C) sinkholes D) all of these
Eutrophic
What will be an ideal response?