In natural selection

Key concept on which Darwinian theory of evolution is based are

Darwinism cannot explain

The unit of natural selection is

The idea of 'Natural selection' as the fundamental process of evolutionary change was reached 

Which of the following is not associated with the Darwin's natural selection?

Metals in the middle of the activity series are generally present as _______ in nature.

The major products of the following reaction is:
$ZnS(s)+O_2(g)\stackrel{heat}{\to }$

Conversion of ferric oxide to iron metal using aluminium is called as:

Zinc oxide is reduced to zinc metal by heating with: