What two factors that combine to keep earth and the moon in their orbits are

the first one is obviously gravity which hold the planets in their spots and the second one is called inertia sometimes can be called orbital speed which explains inertia  and thats what allows our planets to orbit or move around  :D

lincoln won 212 electoral votes to mcclellan's 21 votes, and lincoln beat mcclellan. is the main reason lincoln won in 1864.

in 1989, tiananmen square in beijing was the site of china’s main industries. china’s government headquarters. -pro-democracy demonstrations. (second choice)