If there was no sun, would human beings be able to survive on earth forever?

All life species on the earth need to rely on the sun, its sunlight and the right temperature given to the earth are the conditions for the existence of life species on the earth, so if there is no sun, with the level of science and technology that human beings have mastered, can we still survive?

In fact, if there is no sun in the science and technology of human beings today, it can already create conditions for human beings with a certain population size to survive, and its survival method can basically refer to the popular science fiction movie "The Wandering Earth".

The time set in this movie is about 600 years in the future, assuming that due to the imminent helium flash of the sun and turning into a red giant, in this way, the sun will wipe out life species on the earth's surface in an instant, and then become a red giant star will gradually engulf the orbit where the earth is located, so human beings are faced with two choices, escape from the earth or leave with the earth, and then the earth united ** decided to enable the "wandering earth" plan and leave with the earth.

So all mankind worked together to install more than 10,000 planetary engines up to more than 10,000 meters on the earth, first forced the earth to stop rotating, and as a result, because of the tsunami and various disasters, the population of the earth was halved, and there were only about 3 billion people left, but at the same time that human beings built giant planetary engines, they also built huge dungeons around the engines, and human beings used the heat generated by the engines to generate electricity for heating, and built some grain and meat production bases in the dungeons, simulating the living and growing environment of animals and plants. Production of a variety of food products.

When the Earth moved away from its current orbit, its surface began to cool, and the oceans were all frozen, making it difficult for humans to live in the surface. Living several kilometers below the Earth's surface, humans need to travel to the neighboring Proxima Centauri galaxy over the course of 2,500 years in search of a new viable home for Earth and humanity.

So if there is no sun at this time, as long as it does not disappear all at once, then human beings will have time to move from the ground life to the underground, because human beings have mastered the technology of nuclear power generation, and in addition, the underground near some large coal mines and some oil producing areas can also provide human beings with the energy needed for survival, but the best option is to build underground nuclear power plants, and build underground cities around these power stations, so that human beings can also live in them for a long time.

<>However, with the current scientific and technological conditions and technical level of human beings, it is still impossible to compare with the "Wandering Earth", this work talks about 3 billion people living in the dungeon, and now we can provide such living conditions for 100 million people at most, as for how long human beings can survive in the dungeon, this can actually be sustained, and human technology will also progress, and the living conditions will gradually improve.

No, because without the sun, there would be no daylight, the temperature would drop rapidly, and there would be less and less oxygen.

No. Now human beings are inseparable from the sun, and if the sun disappears, with the current level of science and technology of human beings, it will definitely perish.

If there is really no sun, then it will be really difficult for human beings to survive on the earth, and the surface temperature will continue to drop, and it is likely that we humans will be frozen to death.

What would happen if there was no sun on Earth? Can humans continue to survive?

Suppose that there is no sun at this moment, the earth will be dark, and of course you can rely on generators to generate electricity, but in fact, the entire earth has such a large demand for electricity, and power generation will not last long. The sun will give the earth temperature, and the earth will drop sharply without the sun's irradiation, and human beings may have to stay in an artificially warm constant temperature environment to avoid being cold to death.

Plants on the earth have no energy from the sun, cannot carry out photosynthesis, cannot synthesize and replenish energy to death, and plants all over the world will suffer the fate of death, and animals will die because of the mass death of plants. There is no way for humans to escape their doom, because of the lack of food, a large number of humans cannot survive. At the moment, the remaining human beings can only rely on technology, such as the ability to survive underground, as a way to resist the cold earth.

The moment the sun disappears, the solar system will collapse, and without the gravitational pull of the sun, the planets in the solar system will no longer circle around, but fly out along their original trajectory, and then move freely in the universe, and will collide with other planets and flying celestial bodies. The uncontrollable direction of flight and collisions with other celestial bodies in the universe are no longer something that human technology can prevent, and the fate of human beings is only death. Humans cannot immigrate to other planets with existing technology.

Humans certainly can't survive without the sun. There is no sun on it.

There is no light. The world will be pitch black, there will be no warmth, there will be no sun, everything will not photosynthesize, I will not grow, you can imagine that it will be all things dry up and decay. The same is true for humans.

Without sun, without light and warmth, how can human beings survive. It is a true truth that all things grow and look at the sun.

If the sun is gone, the moon is gone, there is no such world. Then there will be no tears.

This should not be, I have seen popular science before, if the sun disappears, then the temperature of the earth will drop to minus 200 degrees, and the oxygen will disappear.

You also asked. You should know too. If there is really no sun, it is deep enough for her. This bankruptcy is everybody, um a person knows, I think everybody should be aware of this kind of thing.

No, life needs light to survive.

It shouldn't be, not only plants need photosynthesis, but people also need to bask in the sun to replenish calcium and carry out daily lighting.

With the current conditions of scientific development, it is impossible to balance everyone!

Then artificial sun, if there is none, human beings can only be extinct.

Anything that people should eat needs the sun, and if there is no sun, people should not be able to last long.

If there is no sun, human beings will not survive, there is not such a saying"Everything grows on the sun"Without the sun, everything on the earth does not grow, can people still be clean?

The sun can be said to be the source of life on Earth. Without the sun, the Earth would be a dead star. In "The Wandering Earth", humans let the entire earth go directly to another sun as a spaceship.

Without the sun, what problems are humanity facing?

1. Food shortage.

Plants need photosynthesis, and without light, all crops will not be able to grow properly. Someone might think that with artificial light, wouldn't it be? Even if there is no sun, in the greenhouse, there are lights, and it can still grow.

But this one needs to be long-lasting and is a huge source of energy**.

2. Extremely cold weather.

One of the extinctions of species on Earth is the Ice Age, and without the sun's rays, the Earth's temperature would plummet, to minus 200 degrees Celsius. Such extremely cold weather would be devastating for humanity.

Although it is said that the earth has been covered by thick ice many times in geological history, and many creatures have escaped catastrophe. But this time it was completely different, because although there was ice in the past, there was still the sun shining at that time, and the temperature was not too low. And if there is no sun, it is as simple as a thick layer of ice on the surface of the ocean, and then the entire earth's oceans will be completely frozen.

What about geothermal heat, isn't there still geothermal heat, how can it freeze completely all of a sudden, the temperature of the earth's core is 5,000 degrees Celsius? It is true that the closer you get to the core, the hotter it gets, but because the surface is so far away from the core, thousands of kilometers, that the heat transferred to the surface is so small that people don't feel it at all.

3. Hypoxia. In fact, any gas will have a liquefaction or solidification temperature, just like the three states of water. The liquefaction temperature of oxygen is -183 degrees.

Oxygen, in its standard state, becomes a pale blue liquid at a temperature of -183 degrees Celsius, i.e., liquefied; At about -218 degrees Celsius, it becomes a snowflake-like, pale blue solid, i.e., cures. Regardless of whether the composition of the air on Earth has changed without the sun, the liquefaction or solidification of oxygen alone makes the air free of oxygen.

In fact, not only oxygen, but also carbon dioxide and other gases have been solidified early, and carbon dioxide directly becomes solid without going through the liquid stage at normal pressure, and the temperature is degrees. That is to say, if there is no sun, the atmosphere on the earth is gone, and without air, human beings can no longer survive.

It is impossible to survive, the sun is so important to humanity, and if there is no sun, then humanity will be extinct.

Of course not, if there is no sun, then there is no sunlight, there is no warmth, even basic photosynthesis cannot be carried out, and animals and plants cannot survive.

If there is no sun, human beings will definitely not survive, human beings are inseparable from light, and any kind of animals and plants cannot do without light.

Impossible, because without the existence of the sun, in fact, everything in the world will be affected, everyone can not survive in a stable state, and human beings have no way to replenish energy.

If there is no sun, human beings will not survive, our body will lack a lot of calcium, and without sunlight, it is easy to get sick.

If there is no sun, we human beings will definitely not be able to live, after all, we human beings can live so well now, and there is some inseparable relationship with the sun.

Couldn't survive. Solar energy is the energy of all life activities**, energy is passed through the food chain step by step, it enters the ecosystem through the photosynthesis of green plants, and then transfers from green plants to various consumers, the starting point of energy flow is the solar energy fixed by the producer through photosynthesis.

It can't survive, because without the sun, plants can't photosynthesize, and without oxygen on the earth, humans can't survive.

Of course not. Because the sun can provide people with light, and it can also provide people with a lot of energy, and the growth of plants is inseparable from the sun, and people can not carry out normal breathing and metabolism without the sun.

If there was no sun, human beings might not be able to survive, because human life is inseparable from the light source. So the presence of the sun is particularly important.

It will not survive, because if there is no sun, then the temperature of the earth will plummet, and we humans will not be able to bear it.

No more. Without the sun, some plants would not be able to survive and produce some oxygen, and human life would be very difficult.

Of course not, if there is no sun, it will not be able to provide us with enough energy, there is no way to survive.

Of course, it is not difficult, because without the sun, there is no photosynthesis, so it is impossible to survive.

No, because without the sun people can't eat food, because plants can't photosynthesize.

Of course it can't survive. Because of the lack of sun, our life will become very difficult, and our human body will also lack a lot of materials.

You can't survive because people can't live without the sun, and most of the things on Earth now need sunlight.

No, because the oxygen we breathe is produced by the sun's rays to promote photosynthesis in plants.

Without the sun, it would certainly not be possible for humanity to survive.

Assuming that without the sun, human beings will definitely have no way to survive, and the earth itself cannot shine, so all living things on the earth will be wiped out, because without sunlight, photosynthesis will stop, and organisms and people will rely on inhaling oxygen to survive with less and less, and all creatures that rely on the sun to live will soon become extinct. The whole planet will get colder and colder. Even if humans use fusion reactions to create artificial small suns, due to their limited energy, the efficiency of promoting photosynthesis by organisms will be unsatisfactory.

For this reason, the capital group will use the wealth accumulated before the sun disappears, buy its own artificial sun, and use it within a limited range, only to maintain itself and a small number of people, and the rest of the people will say goodbye, and the capital group will begin to deceive and suppress each other, and eventually lead to the end of the whole thing. At that stage, there is a limit to what materials can be. When the artificial small solar thermonuclear anti-hail Tongzhou should end, it is the time when the earth completely turns into a ball of darkness.

At that time, the Demon Kingdom is also finished.

Organisms that do not rely on oxygen will develop greatly, and these organisms will also receive special evolutionary abilities. Eventually dominate the world.