(Not drawn to scale) Which spheres are zones of Earth's atmosphere?
1) lithosphere, hydrosphere, and troposphere
2) stratosphere, mesosphere, and thermosphere
3) asthenosphere, lithosphere, and hydrosphere
4) hydrosphere, troposphere, and stratosphere
20

Which evidence is most likely used to indicate the beginning of solar system formation? a. materials combined to form a mass. b. materials were pulled together by gravity. c. water condensed and collected to form oceans. d. different species of microorganisms lived on earth.

Find the coordinates of a if b(-9,-10) is the midpoint of ac and c has the coordinates of (-1,9)

b) is there any ordinal sense to zip codes? in other words, does a larger zip code tell you anything about a location compared to a smaller zip code?