Author Question: All massive-star supernovae leave behind black holes as remnants. Indicate whether the statement ... (Read 5 times)

leo leo · **on:** Jul 27, 2018

All massive-star supernovae leave behind black holes as remnants.

Indicate whether the statement is true or false

Question 2

In the context of planetary geology, what do we mean by outgassing?

A) the release by volcanism of gases that had been trapped in a planetary interior
B) the loss of atmospheric gas to outer space
C) another name for a volcanic eruption
D) the evaporation of water that adds water vapor (a gas) to an atmosphere