Question

1. stellar equilibrium relies on fusion and gravity to maintain stars in their current form. (10 points)

a. what will the sun turn into when it runs out of fuel for fusion? (5 points)
b. do you think this will mean the end of life on earth? (5 points)

Explanation:

A. When the Sun runs out of hydrogen - its main fusion fuel, it will first become a red giant. After shedding its outer layers, it will end up as a white dwarf.
B. While the Sun becoming a white dwarf will be a major event, it may not necessarily mean the end of all life on Earth. Some forms of life might be able to adapt to the new conditions, perhaps in deep - sea vents or other protected environments. However, the surface conditions will change drastically with the Sun's transformation.

Answer:

A. A white dwarf.
B. It may not necessarily mean the end of life on Earth. Some forms of life might be able to adapt.