The exosphere is the layer of the atmosphere
a. closest to the earth's surface.
b. that absorbs ultraviolet radiation from the sun.
c. where gas molecules can be exchanged between earth's atmosphere and outer space.
d. where air temperature stops increasing with altitude and starts decreasing.

community or area create social relationships that typically differ greatly from the affiliations ultimate effects of travel experiences on the population in areas of origin, as well as in places of wage of only a dollar or two. motorcoach operators, museums, and restaurants fall into the broad category of public

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