The first life on Earth originated in ........ .

The first life on Earth appeared in water,and evidence indicates that life originated in one of the following eras:

Which of the following combined with methane and ammonia to form water,$CO_2$ and others on early Earth?

Growth by the absorption of molecules from the environment forms the:

According to the special creation theory of conventional religious literature,which of the following connotations is inconsistent?

$A.I.$ Oparin wrote