A. Thermal Expansion
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A loose, icy body with a long, narrow orbit is a comet
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Answer:
so the third one
Explanation:
During the day, the sun heats up mountain air rapidly while the valley remains relatively cooler. Convection causes it to rise, causing a valley breeze. At night, the process is reversed. During the night the slopes get cooled and the dense air descends into the valley as the mountain wind.
Im going for d i think i took this last year
