Top 10 Facts About Earth

Earth exists for more than 4 billion years. It is the only planet in the universe that has human life. It is made up of oxygen, iron, silicon, magnesium, sulfur, nickel, calcium, aluminum, and some other elements. We all know about the various layers that form the interior of our planet. The layers are divided into the lithosphere, asthenosphere, inner core, and outer core. The surface of the earth is composed of 71% of water and 29% of the land.

Earth consists of many living creatures on the earth such as animals, birds, reptiles, anaerobic organisms, and human beings. It is a universal fact that earth revolves around the Sun for the whole year. Today, you will come to know many interesting facts of the earth which you’d not have heard them any time before. We have listed Top 10 Facts About Earth.

10. Planet With Living Organisms

In last few years, scientists of the world are continuously making research to find out whether there is life in other planets just like earth. But there is no concrete evidence found except some water on Mars and building blocks on Saturn’s moon.

There are no human forms found anywhere except the planet earth. Our planet is the only one with many kinds of living creatures and human beings and many marine animals too. Still, there are many studies going on to find the existence of life on earth.

9. Earth Is Spherical

Yes, this is one of the most amazing facts of the earth. We have been told in our school days by teachers or it has been mentioned in various books that earth is round. However, it is not true as the earth is spherical in shape.

Because of rotation, it has become flat on its axis and slightly bulging on the equator. The diameter of the earth is larger than pole-to-pole. So now, you know that the earth is not all round but has a spherical shape.

8. Earth Consist Of Iron, Oxygen, And Silicon

Our planet is composed of various gases and elements in various percentages. Out of the total composition, the amount of iron is 32.1%, oxygen is 30.1% and 15.1% of silicon. The other elements such as magnesium, sulfur, nickel, calcium and other elements form between the amounts of 1%-13%.

The iron is mainly found in the core areas of the earth. The earth’s crust is mainly composed of chlorine, fluorine, and sulfur in various amounts.

7. Earth Doesn’t Need 24 Hours

You will be surprised to know that there are actually not 24 hours in one day. The rotation of the planet around its own axis takes 23 hours and 56 minutes and 4 seconds. The time of the solar day differs by 16 minutes in one year.

This is because of its position in orbit. From tomorrow, you need to finish all your day’s work in actually 23 hours and 56 minutes instead of 24 hours.

6. Magnetic Field Due To Earth’s Molten Iron Core

Our planet has a magnetic field around both of its poles. The region of magnet formed is known as the magnetosphere. Studies have found that the molten core of the earth gives the magnetic effect around the poles. It is the result of the heat that electric currents are generated.

The magnetosphere prevents the solar winds from Sun to hit our planet. It protects the humans from harm caused by the Sun’s solar winds and the harmful radiation also.

5. Theia

Do you know that earth had a twin planet called “Theia” before billions of years ago? There is a belief that before 4.5 billion years, one of the planets existed which was Theia. It hit the earth and formed the Moon by a combination of materials.

The Moon has metallic isotopes which are the same as that of earth. All these indicate that there was another planet similar to our earth which existed before billions of years ago. It is believed that Theia had a size similar to that of Mars.

4. The Atmosphere Is Beyond 10,000 km

The earth is composed of 5 layers which are the troposphere, stratosphere, mesosphere, thermosphere, and last one Exosphere. The atmosphere of the earth is very thick on a distance of 50 km. The total distance covered by Earth’s atmosphere is approximately 10,000km. The pressure of the air and density go on reducing as the level of the earth goes higher.

The largest layer of the earth is exosphere and it is located at an altitude of 700km. It is composed of hydrogen, helium and other gases in lesser amounts such as nitrogen, oxygen and carbon dioxide.

3. Mystery About Moon

We see the beautiful moon every day but there are many interesting facts about it which we don’t know. It is situated at a distance of 6,000 feet from the earth. This is the reason behind its unusual shape. It has dust on its surface which has a smell similar to that of gunpowder.

There is no darkness in the moon is one of the facts which we are not aware of. Because of the Earth’s gravitational force, the moon rotates only one time in one month. We see only one side of the face.

2. Oceans Are Only 10% Explored

Do you know about 90 % of the seas and oceans of our planet are unexplored yet? Only about 10% of the oceans are explored to find out the total species of marine animals. There are more than 212,000 marine species in the world but there are many millions other which we are unaware of.

1. More Than 365 Days

There are more than 365 days in one year. The Leap year every 4 years is caused by the 2564 days every year. So there is one day extra in a leap year every four days and there are 29 days in the month of February.

We live on the earth and it is very necessary to know about these facts about it. But their lot of things that need to be either told to people or more research has to be done.