History of the Earth

How many part is geological history divided into? Name them.

The geological history is divided into four parts. They are:
   - Precambrian era.
        - Mesozoic era.
        - Cenozoic era.

Earth's formation-Hypothesis

An early theory of supposition which is formed on the basis of scientific ideas and reasoning but might lack experimental proof is called hypothesis. It's very difficult to exactly say when the Ear...

Carbon and Mineral Oil

The fuels which are formed in nature by the decomposition and preservation of organic matter under high temperature and pressure for a long period of time are called fossil fuels.Coal, oil and natu...

Write short note on fossilization.

The process by which fossils are formed is called fossilization. As we know that due to different natural disasters, the plants and animals may sink into the earth's ground. After that fossils are formed by the impression of preserved parts and skeleton after they are preserved by rocks. As a whole, this process is called fossilization.

Geological Time scale

The organisms we see today come from a huge chain of evolution. When Earth first evolved, there was no favorable environment for the evolution of organisms on Earth. After continuous change in clim...

Write the difference between:a. Mesozoic era and Cenozoic era.b. Paleozoic era and Mesozoic era.

a. Mesozoic era and Cenozoic era.

Mesozoic era	Cenozoic era
It is the golden era of reptiles.	It is the golden era of human beings.
Formation of hills and mountains.	Breaking and expansion of rocks.
Coniferous plants were developed in this era.	Toothed animals, gymnosperms and angiosperm were developed in this era.

b. Paleozoic era and Mesozoic era.