Our Earth is the only planet in the Universe on which there is life. In this article Information About Earth In Hindi "How the Earth originated?" and "How was the Earth born?" Will talk about questions.

Scientists are searching for life in the universe and they have found some super earth in the universe and we can expect that in future life like earth will also be found on any other planet.


History And Origin Of Earth

According to scientific estimates, Earth was born 4.54 billion years ago but life started 1 billion years after its creation. This was the time when the solar system was formed. It is believed that the "Earth" is a part separated from the Sun, which later became a planet.


It is believed that initially there was only lava on the earth i.e. the earth was very hot and there was no possibility of life. Over time, the earth began to cool and a solid surface was formed.

The atmosphere was created and the conditions for life were created. The atmosphere on Earth is due to gravity. Earth's powerful magnetic core developed. Over time, the ozone layer was formed in the earth's atmosphere, which protects the earth from the harmful rays of the sun. Climate change started on Earth, due to which the seasons started to form. There are three seasons on earth, summer, winter and rain.


Formation of Water on Earth

Once upon a time there was only water on earth and it is believed that during this time the first creatures of the planet were born in water. Later continents were formed and land was formed. The "water" necessary for life came to the earth. At that time the temperature of the earth was very high, due to which it was difficult for water to remain on the surface of the earth, due to which water could not remain on the earth, then friends, how did water come on the earth?, behind this is the theory of asteroids.


According to the theory of asteroids, billions of years ago, a large asteroid collided with the Earth, due to which the water of that asteroid would have come to the Earth. This theory also holds true because water has been detected on these asteroids.

Earth is a solid planet with mass. Like Earth, all the three planets Mars, Venus, Mercury are also rocky i.e. solid. The rest of the planets in the solar system like Jupiter, Saturn, Varuna, Uranus are gaseous planets. Earth is the largest planet among the solid planets.


Structure Of Earth 

The Earth's internal structure is in the form of layers. There are mainly three layers in the earth. The first layer is the center of the earth, which contains nickel and iron, it is called the core of the earth. The radius of the center of the Earth is 1221 km and the temperature of this core is 6000 °C. This is called the inner core of the Earth and it is in a liquid state.


The outer layer of the Earth is 30 km thick. Between the center and the outer layer lies a mantle layer. On the outer surface of the earth there are mountains, seas, volcanoes, large craters, forests, deserts, etc. The plates that lie under the outer layer keep on moving, causing earthquakes and tsunamis. The formation of mountains on earth has also happened in the same way. Where there is an ocean today, there used to be oceans, and where there is an ocean there used to be high mountains. This construction process goes on continuously.

In ancient times it was believed that the earth is flat but many scientists told that the earth is round. The earth is not round like a ball, it is oval, due to which it is flattened at both the poles. The Earth rotates on its axis, which produces a centrifugal force and this is the reason for the flattening of the Earth at the poles.


Amazing Facts About Earth 

1. Earth is made up of elements like iron, oxygen, nickel, silicon, magnesium, sulphur, aluminum, calcium.

2. Earth The Earth is 71 percent water and the rest is land. 97% of the Earth's water is in the oceans, which is not potable.

3. Earth revolves around the Sun. This path of revolution is oval. Earth travels around the Sun in full 365 days, 5 hours and 48 minutes.

4. The reason for the change in the weather on the earth is the rotation of the earth.

5. Earth is tilted on its axis at 23.5 degrees. This is also the reason for the change in weather.

6. The earth also rotates on its axis, which is called the rotational speed of the earth. The Earth completes one rotation in 24 hours, making night and day.

7. There is also a satellite of our earth whose name is Moon.

8. The Earth's atmosphere consists mainly of 78% nitrogen and 21% oxygen gas. Apart from this, there are also gases like carbon dioxide, argon, neon.

9. Earth The center of the Earth is as hot as the surface of the Sun.

10. Due to the atmosphere, meteorites get destroyed due to friction in the atmosphere before hitting the earth.

11. The radius of our earth is 6371 km and the earth is 150 million km away from the sun. It takes 8.3 minutes for sunlight to reach the Earth.

12. Water is found on earth in three states, solid, matter and gas.

13. Earth is the third planet in our solar system after Mercury and Venus. Earth is the 5th largest planet in the Solar System. Earth is the only planet that has an atmosphere.