The Big Bang theory was proposed by:

In the experiment conducted by Urey and Miller and similar experiments, which of the following components were obtained at the end?
$I -$ Sugars, $II -$ $DNA$, $III -$ Amino acids, $IV -$ Nitrogen bases
$V -$ Pigments, $VI -$ Fats

Which compounds were formed towards the origin of life?

In which era did life originate?

How was free ${O_2}$ released into the Earth's atmosphere,given that there was no free ${O_2}$ at the time of the origin of life?

Origin of life from nonliving matter is known as