<u>Answer:</u> Erosion
<em>The process in which there is a wearing down on the surface on the earth which goes through the erosion is called gradation.</em>
<u>Explanation:</u>
There is a certain force which is the cause for the <em>formation of earth’s surface and that force is called as endogenic forces. </em>
There may come up a question about how the <em>surface of the earth</em> is not even, the reason is due to exogenic process failing to even out <em>the variation of the land.</em>
Not really sure on that one but I can answer the question below called Define Osmosis. :)
DNA, Chromosomes, Nucleus, Cell, Organism
Explanation:
DNA makes up the Chromosomes, which are stored in the nucleus, which is the brain of the cell, and cells make up organisms.
