Some Hypotheses About the Origin of the Earth and Reasons for the origin of life on Earth

Some Hypotheses About the Origin of the Earth 

Scientists have come up with their own ideas. Some of the hypotheses are as follows:

1. Planetesimial Hypothesis

The first theory of the origin of the earth was made in 1749 by George Buffon of France. According to his theory, a planet orbiting the universe long ago collided with the sun, splitting the sun and forming other planets and satellites, including the earth. 

2. Nebular Hypothesis

The nebula hypothesis, introduced by the German philosopher Kant in 1755, was modified by Laplace in 1796. According to him, about four and a half billion years ago, a vapor was floating in space. During this rotation, the body began to shrink and shrink, and then small pieces broke out of it. The pieces began to rotate around the large body. Thus the big body Sun and other small bodies were established as planets.

3. Tidal Theory

In 1917, Jeans and Jeffrey hypothesized that in ancient times, a large star spun close to the sun. The star's own gravitational pull created a tide from the sun. The tidal material melted and cooled to form fragmented planets, satellites, etc. This is how the earth is made. 

4. The Solar System from the Milky Way

The theory is that when the small dust particles in the Milky Way are attracted to each other, the big body becomes the Sun. Other planets formed in the same way.

Reasons for the origin of life on Earth:
Earth is estimated to have originated 4.5 billion years ago. When the earth came into being, there was no environment suitable for living things. As the earth underwent various movements and changes, an environment conducive to living things was created. The main reasons for the origin of life on earth are as follows:
1. Favorable air (O., N. CO.) Etc. required by the organism.
2. The amount of water needed by the organism.
3. The temperature required by the organism, etc.