2. Without the traction of the moon, the rotation axis of the earth will change, so the seasons will change everywhere;

3. There will be no tide in seawater;

Without tidal force, the earth rotates too fast, the crust is unstable, and volcanoes and earthquakes are frequent. The length of day and night is too short to breed adaptive species. The ecliptic angle basically does not exist (the perturbation of other planets has little effect), and there will be no alternation of seasons.

4. Meteors will increase;

The earth's biological clock will not be obviously affected.

Without the moon stirring the earth's hot core, the earth can't produce a magnetic field, can't shield the solar wind and cosmic rays, and can't produce life at all.

If there were no moon, the earth would go around the sun in a smooth elliptical orbit. Because of the existence of the moon, the earth's orbit around the sun becomes an ellipse with many small bends. The earth looks like it is riding on waves.

The first statement:

Without the moon, the earth can't live.

We can imagine what the earth would be like without the moon. If there is no moonlight in the night sky, it will only bring inconvenience and regret. However, if there is no moon, it is not just a matter of moonlight. Very serious problems will happen on the earth. According to calculations, if there were no moon, the tides of the earth would be one-third of what it is now, and the earth's rotation time would be 6-8 hours. Can we humans survive and develop on this earth? Fortunately, 4.6 billion years ago, shortly after the birth of the solar system, the moon was born because of a huge collision with the earth. As a member of the solar system, the moon was born together with the earth. Therefore, we earthlings should thank the moon. Recently, people are worried about whether a meteorite hitting the earth will cause serious problems. Therefore, scientists monitor meteorites. Because the impact of meteorites on the earth often plays an important role in the evolution of the earth. One of the most important events is the impact of an alien meteorite with a radius of 10km on the Yucatan Peninsula in Mexico about 65 million years ago. This period is equivalent to the boundary between Mesozoic Cretaceous and Cenozoic Tertiary (K-T). Taking this period as the boundary, the era of reptiles ruling the earth ended and the era of mammals began. So the earth is a lucky planet. About 4.6 billion years ago, when our solar system was formed, the earth was born. Soon after the birth of the earth, the moon was born. There is an interesting question. Since many planets in our solar system were born and began to evolve at the same time, why did the earth evolve into a living planet alone and why was the earth so lucky?

The second statement:

American scientists boldly imagine that if the moon is removed, the earth will become a paradise.

Get rid of the moon, the earth will become a real paradise on earth, which is an amazing opinion put forward by A-bian, a famous American mathematics professor. Professor A Bian believes that the 23-degree inclination between the earth axis and the earth orbit is the result of the gravitational interaction between the earth and the moon. It is this tilt that changes the angle of sunlight on the earth, making one side of the earth suffer from hot summer, while the other side suffers from cold winter. If the moon is blown up (it is more than enough to blow up the moon with the nuclear weapons currently possessed by mankind), the lunar debris will land near the South Pole of the Pacific Ocean, which can correct the inclination of the earth's axis and the earth's orbit and make the sun shine evenly on the earth. Then, those annoying seasonal climate differences on the earth will disappear, and people can enjoy the "four seasons like spring". In a good climate, the desert can also become fertile land. But NASA's moon experts questioned this. He said, if there is no moon, will the icebergs in the north and south poles melt? Professor Xiao Abian believes that destroying the moon will only make the icebergs at the poles melt more evenly. (Beijing Evening News 1992. 1.25)