How is momentum conserved in a system in which two satellites connect

How are rocks that cooled within magma chambers found on earth’s surface today? they are pushed up by magma under earth’s surface. they are revealed by erosion of earth’s surface over time. they are pushed to earth’s surface because of their larger size. they are revealed at earth’s surface due to their low density.

What is the name of the two satelites on mars

Describe the function of the endomembrane system? what organelles are involved?