Compression and stretching are actually caused by the stress on the both.
Compression happens on the side of impact and Stretching happens ont he side opposite to that of the impact.
We require to keep our water supply clean because we imbibe that water. If our water supply wasn't unsullied, we would die of dehydration. Another reason is that without water, all the crops would die and we wouldn't have any aliment to victual and so we would withal die of hunger.
A zygote is immediately formed after fertilization between two gametes. This cell is eukaryotic and made up of a combination of the DNA in both gamete. Zygote contains all the hereditary information essential in the formation of a new individual.
Answer: C. there is more silicon than calcium at the surface of the earth
Explanation:
