Debate: Humans cannot migrate to other planets.

Compared with the vast universe, the earth is small. It's only this big, and it won't grow any longer. The surface area of the earth is 5 1 10,000 square kilometers, and the land inhabited by human beings only accounts for about one fifth of it. In this way, the range of human activities is very small.

The natural resources of the earth are also limited. Take mineral resources as an example, it is not given by God, but formed by geological changes over millions or even hundreds of millions of years. The earth is selfless, and it generously provides mineral resources for mankind. However, if mining is not controlled, there will be less and less mineral resources on the earth.

The water resources, forest resources, biological resources and atmospheric resources needed by human life could have been regenerated and contributed to human beings for a long time. However, due to the wanton destruction of natural resources and the indiscriminate use of chemicals, human beings are not only unable to regenerate, but also cause a series of ecological disasters, posing a serious threat to human survival.

Some people will say, isn't there a lot of space? There are countless planets there. When the earth's resources are exhausted, can't we move to other planets?

Scientists have proved that there is no second planet suitable for human habitation at least within 40 trillion kilometers centered on the earth. Humans can't expect to move to other planets after destroying the earth.

Only one earth

Yes, scientists have put forward many ideas, for example, building an immigration base on Mars or the moon. However, even if these ideas are realized, it is far away. Besides, how many people can live?

"Our earth is lovely and fragile!" This is the sigh of astronauts traveling in space and witnessing the earth.

There is only one earth. If it is destroyed, we have nowhere to go. If all kinds of resources on the earth are exhausted, it will be difficult for us to replenish them from other places. We should seriously protect the earth and its ecological environment. Let the earth better benefit our future generations!