Author Question: Why is thermal escape of atmospheric gas much easier from the Moon than from Earth? A) The Moon's ... (Read 35 times)

penza · **on:** Jul 27, 2018

Why is thermal escape of atmospheric gas much easier from the Moon than from Earth?

A) The Moon's average surface temperature is lower than Earth's.
B) The Moon lacks a global magnetic field, while Earth has one.
C) Outgassing on the Moon releases gases with lower masses than does outgassing on Earth.
D) The Moon's gravity is so much weaker than Earth's.

Question 2

After reaching its peak luminosity in hours or days, a nova declines in brightness over a period of a few ________ before returning to its pre-explosion luminosity.

Fill in the blank(s) with correct word