Multiple Choice
While on the main sequence a star's primary energy source comes from
A) nuclear fusion.
B) nuclear fission.
C) gravitational potential energy.
D) magnetic fields.
Correct Answer:

Verified
Correct Answer:
Verified
Q119: A ZAMS star is located _.<br>A)above the
Q120: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5757/.jpg" alt=" -The above image
Q121: The above image is an example of
Q122: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5757/.jpg" alt=" -The above visual
Q123: Pre-main-sequence stars are above and to the
Q125: <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB5757/.jpg" alt=" -The above image
Q126: Which of the following in not a
Q127: _ occurs when most of the material
Q128: Why are reflection nebulae blue in color
Q129: The densest, coldest clouds are called _.<br>A)reflection