What is the life cycle of a medium-sized star?Please help me!!!!!?

Question

1. What is the life cycle of a medium-sized star?
2. Should water be classified as a renewable or nonrenewable resource?
3. What evidence is there that the universe is expanding?

Answer 1

1. See the source.

2. Renewable, because of rain.

3. The redshift of light from distant galaxies. This is a Doppler shift just like that used in police radar to measure the speed of cars.