Does the galaxy consists of gas, dust, and many stars?

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.

Amountain is larger than a hill, with steep sides true or false

East asia’s is dominated by dry highlands and grasslands. a. north and east c. north and west b. south and east d. south and west