Answer:
A long narrow stretch of Hills is called ridge.
I want to say A . Hope this helps :)
Pre-history refers to the period before humans begin to document information.
It is important that human study pre-history because it can give him insight into the origin of life and how life was developed on earth. Pre-history makes one to understand how the earth develop to the stage it is today and it gives one an idea of what could possibly happen in the time to come
<span>The hair, color, and skin of a reconstructed fossil animal is usually based on "inference".
Fossils typically just leave us data about the harder parts of a creature, for example, bones and shells. At times, in any case, delicate tissues, for example, quills, skin or hair are abandoned.
In any case, in 2008 it was recommended that these little microbes like structures were in actuality safeguarded melanosomes, the extraordinary sub-units of a cell that convey the shade melanin. This is the essential wellspring of color for plumes, hair and skin over the set of all animals.
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