(a) What is Goldilock zone for life?
(b) Explain chemical evolution of life.

Explanation

The major concept in Astrology is the habitable zone
Goldilock Zone is a criteria to be fulfilled if a planet can support the existence of life.
(i)It must have an orbit at just the right distance from its star (Sun) That it allows liquid water to exist.
(ii)Thus, the distance need to be neither too hot or not too cold and is often referred as Goldilock zone fot life.