Question

to support life, why must a planet have a roughly circular orbit around a star? A. so freshwater Is available B. to keep the proper air molecules in the atmosphere C. to support chemical reactions D. for temperature regulations

Answer 1

I thinl it would be c

Answer 2

D. for temperature regulations

Step-by-step explanation:

Life as we know it needs certain characteristics to be held in place in order to be possible for existance, the orbit should be more or less circular around the star and far and close enough to mantain temperature at liquid water temperature in order to help increase the probabilities of life to happen, so it would be for temperature regulations.