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.

Which statement describes why the us forest service is important a-it protects ecosystems, supervises public access of lands, and manages wilderness areas. b-it supervises public access of lands, manages wilderness areas, and enforces federal wildlife laws. c- it manages wilderness areas, enforces federal wildlife laws, and foreign governments with international conservation efforts. d- it enforces federal wildlife laws, foreign governments with international conservation efforts, and protects ecosystems.

Jennifer is visiting her grandmother, who lives in the northeast corner of oklahoma. the region is home to many lakes, and jennifer enjoys canoeing on the illinois and grand rivers. to which region of oklahoma is she traveling? the prairie plains, the ozark plateau, the red river plains, the red beds plains

Wegeners theory of continental drift states that the continents have changed throughout history while the theory of plate tectonics