Earth, our planet and the only known planet in this universe on which life is possible. Earth is the third largest planet in the Solar System in size and the third-largest after Mercury and Venus, based on distance from the Sun.
According to the discovery and research so far, Earth is the only planet in the known universe on which water is present in a liquid state. The water found on this planet, the dense atmosphere, and the atmosphere that supports life has made life possible here.
In this post, we will tell you about a lot of important information and some interesting facts related to the planet Earth, which will surprise you as well as increase your knowledge about the Earth.
Earth general introduction
History: According to scientific research and techniques like radioactive dating, the Earth formed about 4.5 billion years ago. Evidence of the beginning of life is found here about 1 billion years after its formation, in the early time’s life flourished in the oceans and the evolution has reached the present position bypassing various stages.
Many species have evolved from time to time on the earth and have become extinct over time, about 99% of all the species that have evolved here have become extinct so far.
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Structure:
About 71% of the Earth’s land area is water, which is divided into seas, rivers, lakes, and ponds. The remaining 29% land in the form of continents and islands, which are divided into soil, mountains, stones, deserts, etc. The North and South poles of the Earth are completely covered with ice.
The Earth’s interior is made up of a solid iron inner core and above it a liquid outer core that is responsible for the Earth’s magnetic force. The Earth’s surface is divided into several rigid tectonic plates that change their position over time.
The planet Earth is connected with other celestial objects located in the universe in a particular position through the force of gravity. The Earth completes one revolution around its star Sun in 365.25 days, with the Earth completing one revolution on its axis in 24 hours. The Moon is the only natural satellite of the Earth, which completes its orbit in about 28 days (27.322 days). Atmosphere: One of the main reasons why life is possible on Earth is its dense atmosphere. The Earth’s atmosphere consists of 78% nitrogen and about 21% oxygen and the remaining 1% is carbon dioxide, neon, hydrogen, etc. gases.
interesting facts about earth
1. Earth is one of the four surface planets in our solar system. Along with Earth, Mars, Mercury, and Venus are the planets whose surface is hard and rocky.
2. The shape of the earth is not a perfect sphere, this is due to the constant rotation of the earth on its axis. When the earth rotates rapidly on its axis, a force is applied towards its center which produces a bulge in the outer part of the earth.
3. Earth is made up of four main layers, namely inner core, outer core, mantle, and crust respectively. Earth’s core is made up of about 88% iron and its crust contains about 47% oxygen.
4. Due to the nickel-iron located in the core of the Earth, it has a strong magnetic field that protects it from heavy solar winds.
5. Earth’s atmosphere is mainly divided into five layers, namely the troposphere, stratosphere, ozone layer, ionosphere, and outer mantle, respectively. The lowest layer, whose height is about 8-18 km, is called the troposphere.
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6. There was a time when the Earth was considered the center of the Universe. Ancient astronomers believed that the earth remains fixed in its place and other astronomical units like the moon, the sun, etc. revolve around the earth.
7. The speed of the Earth’s rotation on its axis is slowing down with time. It is slowing down by about 17 milliseconds in 100 years. At this speed, after about 140 million years, a day will be 25 hours.
8. Only 3% of the total water present on the earth is pure water, the rest 97% of the water is salty and acidic. Two-thirds of the 3% fresh water is frozen at the poles in the form of ice. Only 1% of water in potable conditions is found in lakes, rivers, or on land.
9. Earth does not take 24 hours to rotate on its axis, but it is 23 hours, 56 minutes, and 4 seconds.
10. We all know that the Moon is the only natural satellite of the Earth, but there are also two such asteroids (meteor bodies) that revolve in the Earth’s orbit. Their names are 3753 Cruithne and 2002 AA29.
11. Earth is a rocky planet and scientists estimate that most rocky planets behave similarly. To understand the other rocky planets located in the universe with the help of Earth, scientists continue to study the Earth from space.
12. Due to the dynamics of the inner layers of the earth, there are frequent seismic events on it. Ever since the record of earthquakes in known history has been kept, the most intense earthquake ever occurred in Chile in 1960. According to the American Geological Survey, the earthquake that struck Chile on May 22, 1960, had a magnitude of 9.5 on the Richter scale.
13. Many small creatures are found on earth from unicellular organisms to small insects, but if we talk about mammals, then the world’s smallest known mammal is a bat species found in Southeast Asia Whose length is about 1 inch and wagon is about 2 grams.
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14. The temperature of the Earth’s inner core (5800K) is the same as the temperature of the surface of the Sun. According to Paul Asimow, a geochemist at the California Institute of Technology, this is equivalent to about 10,000 degrees Fahrenheit.
15. The Earth generates about 40 thousand terawatts of heat, half of which comes due to radioactive energy emanating from the Earth’s core. According to a 2011 study, half of the Earth’s heat is generated due to radioactive energy generated by the decay of certain elements in its core such as thorium, uranium, potassium, etc.
16. The Atacama Desert, located in Chile and Peru, is considered the driest region on Earth. There are some places in the middle of this desert where to date it has never rained.
17. Most uninhabited area: Greenland is the most uninhabited land area on Earth. According to the 2010 census, only 56,534 people live here in a total area of 836,330 square miles. However, most of the area of Greenland is covered with snow.
18. The Pacific Ocean is the largest and deepest water area on Earth. The Pacific Ocean, spread over about 590 million square miles, contains more than half of the Earth’s free water.
19. Planet Earth is about 10,000 times older than humans. The Earth was formed about 4.5 billion years ago and only 4.5 million years have passed since humans lived on it.
Conclusion
Humans have named most of the planets and other elements are known so far in this universe according to their convenience, but there is no historical evidence available as to who named our planet Earth.
What do you think?