The ratio of methane,ammonia,and hydrogen in Stanley Miller's experiment was

Who proposed the Big Bang theory?

Origin of life from nonliving matter is known as

Match the following and choose the correct combination from the options given.

Column-$I$	Column-$II$
$A$. Robert Hooke	$1$. Mutation theory
$B$. Charles Darwin	$2$. Swan-necked flask experiment
$C$. Hugo de Vries	$3$. Origin of species
$D$. Louis Pasteur	$4$. Micrographia

Which theory was permanently discarded?

Read the following statements and find out the correct ones:
$A.$ Spontaneous generation theory was approved once and for all.
$B.$ Pasteur showed that in pre-sterilized flasks,life did not come from killed yeast.
$C.$ Oparin observed the formation of amino acids by creating electric discharge in a closed flask.
$D.$ Life appeared $500$ million years before the formation of the earth.