Since we live in earth, we should know some important things based on the earth facts. I believe that some of you do not know much this green and enticing planet. Perhaps, it will be a great time for you to have focused a little while to learn about earth facts. Here let me tell you about the 10 interesting facts about earth.
1. Earth is composed from iron, oxygen and silicon
Now we come to the first aspect of the earth facts. Let us see the composition of earth. The biggest part is made from iron on the rate of 88 per cent from all of the material, while the rest is from oxygen in the level of 47 per cent.
2. A year is not 365 days
At school, the teacher always tells you that a year is 365 days. Based on the earth facts, such thing is doubtful. In facts, a year makes up 365.2564 days. The additional .2564 creates a leap which we can perceive for every four year in February.
3. Plate tectonics
On the third position of the earth facts, you will get some information about the plate tectonic. In the solar system, this is the only planet features such material. Plate tectonic is very useful for human being for it can reduce the heat and recover the carbon foot print.
4. Earth is almost a sphere
If you think that an earth is a sphere, you are totally wrong. It is almost a sphere, but its shape is called as oblate speroid. What makes the earth has such shape is because of its rotation.
5. magnetic field
You may see that our earth has a magnetic field located on the bottom and top side of this planet. Such magnetic field is so beneficial to the earth. If the earth does not have it, many particles from the solar system will burst into the earth easily.
The atmosphere which covers the earth is so wide and large. It spans up to 10,000 kilometer. On the first 500 kilometer, you will get the first layer of atmosphere which is called as exosphere. Since you will get 100,000 kilometer above the surface, there will be some layers to know more.
7. Earth doesn’t take 24 hours to rotate
Now let’s talk about the earth facts based on its rotation. If there is a question related to the earth rotation, most of you will say that an earth needs 24 hours to rerate. Such answer actually is not 100 per cent correct. Earth needs 23 hours, 56 minute ad four seconds to rotate.
8. Earth’s surface
Water has been the most dominating material that you will find in earth. It covers more than 70 per cent from the entire surface. What about the ground? It covers up to 30 per cent from all of the space in earth.
9. Earth’s satellites
Now let’s move to the ninth position of the earth facts. The only satellite that you will know located in this earth orbit is only one called as moon. For extra information, you need to know that there are two other asteroids found in co-orbital system. Both are 3753 Cruithne and 2002 AA.
10. Earth is the only planet known as a place of living
People in this modern era want to find the other planet to live remembering that earth is getting full every day. However, until this day, we only recognize that the earth is the only place which can give human being a place for living.
Have you realized the importance of facts about earth?