Author Question: What can trigger the gravitational collapse of an interstellar gas cloud? A) a decrease in ... (Read 46 times)

HCHenry · **on:** Jul 27, 2018

What can trigger the gravitational collapse of an interstellar gas cloud?

A) a decrease in temperature
B) an increase in density
C) a rise in temperature
D) A and B
E) A and C

Question 2

Volcanism is more likely on a planet that

A) doesn't have an atmosphere or oceans.
B) has high internal temperatures.
C) is closer to the Sun.
D) is struck often by meteors and solar system debris.