When the earth suddenly expands tenfold, what will life be like on the earth?

The volume of the earth is about/kloc-0.0832 billion cubic kilometers, and the surface area is about 5/kloc-0.000 million square kilometers. However, there are more than 7 billion people living on the earth today. In densely populated cities, housing prices are very expensive, so some people think that if the earth gets bigger, maybe houses will not be so expensive. This idea is really ridiculous. The price of a house has nothing to do with the size of the earth. Land price and housing become scarce resources, so they will become expensive, so no matter how big the earth is, it can't stop the rise of housing prices. Today, we won't discuss these, but only talk about the astronomical problems that will occur if the earth increases tenfold.

If the volume of the earth becomes 10 times and the density remains the same, then the mass of the earth will increase tenfold. In this case, it seems that the surface area of the earth has become larger, but we probably have no place to stand.

Why is this? We should know that our earth is a rocky planet, but planets are divided into rocky planets and gas planets. Jupiter, Saturn, Uranus and Neptune are all gaseous planets. The reason why the earth has not become a gaseous planet is that its mass is not large enough. If the mass of the earth increases by 10 times, then the earth is likely to become a gaseous planet, although no obvious boundary between rocky planet and gaseous planet has been found yet. However, after calculation, scientists believe that planets with a mass more than 7 times that of the earth may become gaseous planets, such as Uranus and Neptune, whose mass is only 14.5 times and 17 times that of the earth, respectively. However, they have already become gas planets, and gas planets have no solid surface at all, so the earth is likely to become a gas planet with no solid surface like land at that time. There is no land on the whole earth, which is equivalent to standing on a cone with no place. Moreover, the air pressure of gaseous planets will be very high, and human beings are not suitable for living on gaseous planets at all.

In fact, even if the earth does not become a gas planet, there will still be land, so human life will change greatly, because with the increase of the mass of the earth, its gravity will increase a lot, and the weight of one person is equivalent to the weight of several people, so let alone the long jump. We will have a hard time walking, and even the weight of people will crush the bones, even if we lie flat on the bed, it will be overwhelmed.

Moreover, the increase in the mass of the earth, even if the earth cannot become a gaseous planet, will also cause the atmosphere to thicken and the atmospheric pressure to rise. The external atmospheric pressure on the human body is equivalent to the pressure in a few hundred meters of water depth, which makes the human body unbearable.

What is even more frightening, however, is that if the mass of the earth increases tenfold, the moon will approach the earth because of the increase of the earth's gravity, and it will not take long to hit the earth. A huge impact like the moon hitting the earth will surely destroy all life on the earth.

We should not ignore the gravity between the earth and the sun. The earth will change its orbit around the sun because of its increased mass. If the speed of the earth remains the same, then the earth will stay away from the sun. When the earth leaves the livable zone of the sun, it will become a frozen planet, which is no longer suitable for life.

It seems that the quality of the earth is still good, otherwise everything will undergo subversive changes, which is not a good thing for life on earth.