Which layer of the atmosphere contains most of earths weather? a. mesosphere b. stratosphere c. thermosphere d. troposphere

In 1870, which path would settlers moving west from el paso to los angeles have followed? a) old spanish trail b) gila trail c) california trail d) oregon trail

The blank theory suggests that the sun, planets, and other celestial bodies of the solar system came from a cloud of dust and gas? a.) condensationb.) steady state c.) big bang d.) nebular

The earth's internal process which drives seafloor spreading is