The development of human beings has embarrassed the earth, is this sentence wrong, do you have any o

Essay on the extinction of dinosaurs from man and nature 400 words.

Dinosaurs are a "giant" species on the planet and should have a strong vitality.

But it became extinct a long, long time ago.

All we can see now are fossils and models of dinosaurs.

Many scientists around the world want to find the cause of the extinction of dinosaurs through the clues left by dinosaurs.

But the extinction of the dinosaurs remains a mystery to this day.

Some scientists believe that dinosaurs were poisoned and died by eating poisonous flowers and plants: 120 million years ago, some flowering plants often contain strong alkaloids, and some alkaloids are very toxic.

Some scientists believe that the dinosaurs became extinct due to volcanic eruptions caused by asteroid impacts: about 65 million years ago, a huge asteroid or comet fell from the sky and crashed into the Earth at a speed of more than 10 kilometers per second.

A powerful shockwave swept half the world, and most of the dinosaurs were wiped out in this way.

After the shock wave, the global fire and high temperature caused by ** caused some dinosaurs to be burned and roasted to death.

Later, the temperature dropped sharply, acid rain was drenched, and the last dinosaur was buried in this extremely hostile environment.

No matter what caused the extinction of the dinosaurs, the principle is the same, that is, the environment in which they live has undergone some kind of big change, and it is no longer suitable for the survival of dinosaurs, which eventually leads to the extinction of dinosaurs.

The extinction of the dinosaurs reminds us of the extinction of other species on Earth, and how often they are not.

With the continuous destruction of the earth's environment, natural disasters such as floods, tsunamis, and tsunamis often occur, and the environment for human survival is facing a serious threat.

If left unchecked and protected, humans will end up with the same fate as dinosaurs.

Therefore, we should strive to protect the environment, green the environment, do not cut down indiscriminately, do not dump garbage, do not discharge pollutants indiscriminately, do not waste the earth's resources, create a beautiful living environment for future generations, so that human beings will not repeat the mistake of dinosaur extinction.

Humanity is destroying the planet at an unprecedented rate The Millennium Ecosystem Assessment (MA) believes that this will make it more likely that the natural world will be abruptly abrupt, leading to the spread of disease, the destruction of forests and the creation of "dead zones" in the oceans.

If it weren't for the sake of the environment, I would have refuted it. Civilization is beautiful, the development of civilization is bound to bring negative effects, these effects are not long in the age of the earth, this short-term pain is not enough to kill, after the self-destruction of civilization, the new atmosphere of the earth will be restarted, and there will still be a new civilization.

Probably, because the damage to the earth is too serious now, and at the same time, the earth's ability to withstand it is also limited, so it may go to extinction.

Of course, it will go to extinction, and now the earth is already undergoing various changes every day, with rising temperatures, torrential rains, and sandstorms.

Yes, if humanity continues to do this, then one day humanity will surely go to extinction, and it will also make the earth disappear.

I don't think there's any truth to that, we've built some spaceships now, a lot of people are already working on the space station, we've flown off Earth, and we might have immigrated to other planets.

The universe is vast, and we have only discovered a small part of the current level of human technology. I believe that in the future, with the improvement of science and technology, it is not a dream for human beings to fly out of the earth.

I don't think this statement is correct, because now that human beings have the ability to land on the moon, and the aerospace industry is constantly developing, such a statement is very limited.

The earth is the home of human beings, but now we have been able to break away from the earth with science and technology. The release of manned spacecraft has allowed mankind to explore outer space.

Of course not. My opinion is that this is pure nonsense, now that science and technology are particularly developed, our astronauts have long since flown out of the earth.

Such as: (1) Meteorological disasters: including tropical storms, tornadoes, thunderstorms and gales, hot and dry winds, dry winds, black winds, blizzards, heavy rains, cold waves, cold damage, frost, hail and drought.

2) Marine disasters: including storm surges, tsunamis, tidal disasters, waves, red tides, sea ice, seawater intrusion, sea level rise and seawater recharge.

3) Flood disasters: including flood disasters, river flooding, etc.

4) Geological disasters: including collapses, landslides, debris flows, ground fissures, collapses, volcanoes, mine water and gas inrushes, freeze-thaw, land subsidence, land desertification, soil erosion, land salinization, etc.

5) Disasters: including various disasters caused by ** and various secondary disasters induced by **, such as sand liquefaction, sand spraying and flooding, urban fires, rivers and reservoirs bursting, etc.

6) Crop disasters: including crop diseases and pests, rodent infestations, agrometeorological disasters, agricultural environmental disasters, etc.

7) Forest disasters: including forest pests and diseases, rodent infestations, forest fires, etc.

Volcanic eruptions. **。The ozone layer is broken. Mudslide. Flood. Typhoon. Rising coastline··· All the disasters we can't resist.

We can only say that there are human beings on the earth, but we cannot say that there are human beings only on the earth, because there are countless solar systems in the vast universe, and we cannot explore them, we cannot say that there is no delay, and we cannot say that there are no discoveries. Defeat is pure.

Master of the Earth. <>

Earth. <>

Solar system. <> universe.

If all human beings are wiped out, the earth will become a paradise for animals and plants, just like a house that has been uninhabited for many years, and will eventually lose its human breath. These plants and animals grow unbridled and come to life, just like the rainforests we know.

as well as desert steppes. Human beings depend on animals and plants for their survival on the earth, but the growth of animals and plants does not require human intervention, they will evolve automatically and adapt to the natural environment.

I believe many people have watched science fiction films, which assume that human beings suddenly become extinct one day, and high-rise buildings will become homes for small animals, such as birds wishing nesting mice, stray dogs, and stray cats.

Will rest here. The exterior walls of the building will also be covered with seeds, which will slowly grow plants, and eventually the building will topple over. Any building that is unmaintained and inhabited by humans will slowly become desolate, like the houses in the wilderness or the old houses in the countryside.

This is a natural evolution that is beyond human control. It can only be said that without human beings, the earth will definitely become better and better, for example, the sky will be bluer and the water will be clearer.

All kinds of large animals will compete for living space, and will make a big move, carve out their own territory, and breed here. Tall trees will grow as tall as possible to enjoy more light, and their roots will be deeply rooted in the earth so that they can replenish more water. However, desertification may also become a little more serious, because there is no human to deal with it.

But desertification is also caused by human activities, and it may also change slowly, such as the Yellow River, where the above-ground rivers may slowly disappear, or it may become worse, and the results are unpredictable. And the rest of the world will also change like China, and the earth may truly become a blue star.

If you look at the Earth from space, you will find that the surface of the Earth is particularly beautiful in blue and white, but there are also gray places in some places, which is caused by human activities.

If there were no humans on the planet, the network would collapse, the world would be in a state of blackout, and some pets and livestock would die of thirst and starvation, in a state of leaderlessness.

If there were no human beings on the earth, then I think it would also be a return to the primitive society, the primeval forest, it would cover the whole earth.

If there were no human beings on the earth, the environment of the earth would become very good, the organisms and plants on the earth would grow very luxuriantly, the biodiversity would increase, and the life on the earth would be extended.