Describe a Red Giant

Q12: The process of absorption, emission, and convection

Q13: Describe sunspots.

Q14: _ are comparatively cool, dark regions on

Q15: The _ brightness of a star decreases

Q16: What do astrophysicists call the poorly understood

Q18: Describe the radiative and convective zones.

Q19: Hubble's law states that the _.<br>A) most

Q20: The expansion of the Universe provides a

Q21: A pulsar is a _ that emits

Q22: Explain what will happen to the Sun