The Cenozoic era is the most recent era and includes the emergence of mankind and its' ancestors. It includes earth history from 66 million years to almost the present and also is known as the age of mammals which includes mankind. Evolution of the mammals can be traced relatively easily since there are most likely more abundant fossils than back in say the Cambrian or especially the Precambrian.
Pakistan & <span>India today --Known as the Middle East </span>
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During the 1960's the disclosure of enormous gas and oil fields in Alaska accelerated the change of most coal framework to other petroleum products. During this period Usibelli Coal Mine bought the Suntrana mine and the mining activities in the Matanuska coal fields stopped activity.
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There are four layers of the Earth, including Inner Core, Outer Core, mantle, and Crust. Each layer has its characteristics because of its temperature and formation.
The inner core is solid with iron and other metal deposit in it. The outer core is liquid, while the mantle is composed of silicate rocks. The crust is the outer layer of the earth, consist of different types of rocks.
The earth was able to develop a layer structure because of the climatic change it had millions of years ago, where the hardest metal reached to its core.
