In the development of a terrestrial planet, the stage of ___________ when dense material settled to the core and less dense to the outer parts.
a. differentiation
b. cratering
c. glaciation
d. accretion
e. flooding
Question 2
In the development of a terrestrial planet, the stage of ___________ occurred when molten rock flowed through fissures and filled deep basins.
a. differentiation
b. cratering
c. glaciation
d. accretion
e. flooding