Answer: number 1
Explanation: that is when we could first sustain life because that is when we gained atmosphere and when we could hold carbon and oxogen
<span>Nuc is short for nucleus</span>
Each organ of the body produces pangenes which travel through the blood to the reproduction organs to be given to offspring. This is of course false as proven by scientists.
<em>At noon the sun is directly overhead the sun rays fall vertically on the body so the shadow is very short.</em>
<em>So the rays fall vertically on the body. in mornings and evenings the rays fall at inclined position. So shadows are long at mornings or evenings.</em>