But with the food problem being solved by the madman, the whole world has returned to normalcy once again, and people's sense of taste has slowly degraded over time.

However, there are still people who worry that food will become scarce due to time, so what about oxygen?

As carbon-based lifeforms, they can't do without oxygen at all, otherwise they will still die, but almost all the green in the whole world has disappeared, but after such a long time, will oxygen be consumed?

Even if the whole world is still precipitated with the oxygen left over from all the vegetation before, it will definitely slowly become thinner with the extension of time, even if all the people in the whole world have become extremely few now, but you must know that there is no green in the whole world now, there are only viruses and monsters everywhere.

And according to the calculation, since the last cataclysm, the oxygen left in the whole world should have been almost consumed by now, but all the people still don't feel anything unusual, is it because they are facing monsters and fears everywhere, escaping and fighting, and the thinness of oxygen so that all people have not noticed?

But fortunately, as soon as this kind of statement came out, someone gave an explanation, after all, after a crisis, there are always some people who will think further and think more, and these people who can already guess it seem that they have already taken action.

Although the result is very absurd, this result makes everyone wonder whether to cry or laugh, because the oxygen level in the whole world has not decreased much until now, and the main reason is actually because of the virus.

Because the virus is constantly devouring carbon dioxide, and absorbing the single carbon molecules in it, converting energy into blood energy, turning it back into oxygen.

You must know that everything has a source of energy, and monsters are not able to act without any motivation, and it turns out that the reason why those monsters will act endlessly is because of the blood energy that existed in their bodies, because the virus has completely taken over their bodies.

The virus is transformed into a unit of their body, and the more blood energy the monster gathers, the stronger it will be, and the blood energy is very strange, and it will not be reduced by time, and the energy that a monster needs to act is also very small for blood energy.

And the living human body, there are rich nutrients, these nutrients will greatly make the monster produce more blood energy, and because of instinct, so these monsters will launch a crazy attack on humans.

And the more monsters that kill more people, the more blood energy they have on their bodies, and the higher the chance of producing a mutation.

So later, some people called this disaster the revenge of the world, because human beings did not cherish the whole world, or this planet, before this.

According to the original calculation of the sun and sunlight, all of them actually have a chance to enter the age of astronautics, and at that time, the exploitation of their world's resources will not be so serious, and most of them will evacuate this world that is on the verge of destruction.

But before all the people could escape from this planet, they were enveloped by a catastrophe, which led to the extinction of humanity on a large scale, as if the whole world was taking revenge on them.

There have also been speculations that perhaps these monsters are the new dominant life used by the whole world to replace humans, but this speculation was directly denied after studying these monsters and their survival necessities.

Although these monsters are constantly killing humans on a large scale, what they need to survive is carbon dioxide.

Because they need to extract the carbon from carbon dioxide to convert it into the blood energy they need, and their actions themselves actually need to consume a part of the blood energy, although this amount is extremely small, and the speed of their transformation is almost invisible.

And when all human beings die, just like human beings do not have any plants in the whole world, they will gradually die, and there is no carbon element in the air that is extracted by those monster viruses to convert the carbon dioxide element, and the blood energy in the bodies of these monsters will begin to gradually decrease because they can no longer grow.

And when all the human beings in the whole world are wiped out, those monsters will start to fight between monsters because of the lack of conversion energy, the reduction of carbon dioxide precipitated in the world, and when the battle is carried out, when there is no energy to transform, the world will begin to gradually die.

In the end, the strongest monster left behind may die, or it may fall into a deep sleep, in order to reduce the consumption of energy in the body, and finally fall into a deep sleep.

And the whole world is full of oxygen at this time, and oxygen is also an indispensable condition for the birth of life, maybe in a few years, when the sun shines again in this universe, the world will begin to become full of life again, and the world will usher in another era of wisdom.

And when the world is about to fall into desperation and destruction again, the sleeping monster will wake up again and punish the sinful beings in this world again, as if the world is a means to correct itself.

But when this speculation was put forward by Dr. Mad Man, everyone fell silent, and then thought about what their world had experienced, maybe this virus was not entirely caused by sunlight and comets, and some people even wondered if it was because the planet had already experienced an extinction because of this virus in the first place, as speculated.

Because they hurt the world too much, they were cleansed by nature and corrected by the world's methods...

It's a pity that even though everyone knows the facts of this matter, and even some people have begun to believe this kind of statement, thinking that everything is now self-inflicted, but no one has given up hope for life.

Even if they knew that they could confront the world, it was almost to the point where they could no longer draw any resources.

This world has been devastated by human beings, and too many races and lives, and even races, have died out because of human beings.

Even if there were calls for everything to be protected, it was only a ripple in the great lake, and it didn't stir up much of a wave.

And some people have studied what blood energy is, because this energy is 10 points special, it can give people extraordinary energy, and it will also allow monsters to evolve.

More importantly, this energy has a certain repair ability and transformation ability for all species, life, and cells.