From birth to the present, it has passed 4.6 billion years. The planet we survive on is very mysterious. After all, we have not found a place like the earth that can breed life in the vast universe.

For the earth, human beings are very small, and the time on the earth is not long. How much do you know about the earth?

We can't know how much the earth is, after all, this cannot be measured. However, scientists have inferred this, such as American scientist Henry, who once estimated the earth.

He estimates that the earth weighs about 600 trillion tons, and this value is also unable to understand, after all, it has exceeded the value that people can withstand. For this value, it is just estimated, maybe the earth is heavier than this value.

The earth is the only planet in the entire solar system that will occur in crustal movement. This geological activity helps carbon cycles and is the basis for continuously creating a form of life.

Maybe in everyone's cognition, the earth is round and the earth is also a ball. However, the earth is not as round as we call the earth. The earth is just a sphere -like an object, it looks like an oval spherical.

There are many gullies on the surface of the earth, the north and south poles are slightly flat, and the equator is wide. In fact, it is because the earth is not round, so there are high mountains, lakes, and seas.

The earth is a planet, and it has existed for 4.6 billion years. How long can the earth still exist? This has to be considered from various aspects.

The impact of human beings on the earth is very small. Even if human civilization is extinct, the earth can still be intact.

The earth will be destroyed only when it is accepted by a violent impact.

However, there is no such condition in the solar system, and ordinary asteroids cannot cause much harm to the earth.

For the entire universe, the sun has the greatest impact on the earth. The earth is restrained by the gravity of the sun, so turning around the sun makes life on the earth bathed in the sun.

If there is a problem with the sun one day, the earth will be affected. The fate of the earth and the fate of the sun are bound together.

In the process of human development, we constantly consume the earth's resources and make the earth's environment worse. In recent years, natural disasters have occurred much more than in the past.

This seems to be a natural disaster, but it is actually closely related to the changes in the earth's environment.

A large amount of greenhouse gas emissions have also exacerbated the problem of global warming, bringing a series of changes to the earth's environment.

And now we have to do more to protect the environment and the earth. The deterioration of the earth's environment will also threaten human health, so we must pay attention to protecting the earth.