Author Question: The maria are really seas of long since hardened ________, a dark volcanic rock that also makes up ... (Read 66 times)

bucstennis@aim.com · **on:** Jul 27, 2018

The maria are really seas of long since hardened ________, a dark volcanic rock that also makes up the ocean basins of Earth.

Fill in the blank(s) with correct word

Question 2

Galactic collisions mostly involve interactions between gas and dust clouds rather than individual stars.

Indicate whether the statement is true or false