The earth has three main chemical layers: a core, mantle, and crust. these layers formed from a process called during planetary accretion. a. differentiation b. accretion c. condensation d. mixing

Uncle tom's cabin started out as a series of articles printed in the national era, a newspaper.

Which outcome is not caused by gravitational forcea. gas and dust come together to form a planet b. planets orbit a star c. two atoms come together to form a molecule d. stars cluster to form a galaxy

Venezuela’s economy relies most heavily on which of the followingvenezuela’s economy relies most heavily on which of the following? a. oil reserves in places such as the eastern llanos b. cattle ranching in the grasslands c. fertile farmland in the andean highlands d. coffee plantations in mountainous areas