In which habitat does the diurnal soil temperature vary most?
A
Forest
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B
Grassland
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C
Shrub land
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D
Desert
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Solution
The correct option is D Desert High desert areas have the greatest diurnal temperature variations. Low lying, humid areas have the least. Wet soil such as in swamps and marshes is effective in suppressing temperature changes. Thick vegetation tends to control temperature changes, since it contains some water and also insulates against heat transfer between the ground and the atmosphere.
Arid, barren surfaces permit the greatest temperature changes.