As the oceans expand and the deserts swallow up the land, how long does the earth last?

The earth has been around for 4.6 billion years, how long does it have to live, maybe it will always exist in space, and the earth's lifespan is more influenced by the outside world. The first is the influence of the sun, some scientists speculate that the sun still has a life span of 5 billion years, when the sun will become a red giant, then the sun will no longer heat up, without the heat source of the earth everything will end, will become a cold ice ball, may deviate from the orbit to swim, at this time the earth has no life on the surface of the ice shell.

Excluding the external influence on the earth, the consumption of human activities and resources also accelerates the weakening of the earth, if there is no temperate consumption, one day the energy is exhausted, the earth will become a barren planet, and the era of civilization will end and the earth will return to its primitive state.

How long the Earth can still exist depends entirely on the Sun. The earth is one of the eight planets in the solar system, revolving around the sun, but the absolute protagonist in the solar system is the sun, because the sun accounts for more than the mass of the entire solar system, that is, as long as the sun is normal, the earth cannot escape the gravitational range of the sun.

Of course, there is an atmosphere, oxygen, water, a suitable temperature, and the existence of life on the earth, and a slight change may affect the living environment of these life, and then affect the existence of life, and even lead to its extinction. It should be noted that even if there is no life, the earth still exists normally, and the only factor that causes the earth to change dramatically is the sun.

We know that the Sun is a gaseous star, with extremely high temperature and high pressure inside, and nuclear fusion reactions are always underway, which will lead to the release of huge amounts of energy according to the principle of conservation of mass and energy, which is manifested in light and heat. Depending on the speed of the fusion reaction, the sun can remain stable for at least 5 billion years, which means that the solar system will remain stable enough during this period. According to the theory of stellar evolution, the Sun may become a white dwarf, a neutron star or a black hole in the future, and even then, the Earth will not be able to escape its gravitational attraction.

Scientists estimate that the Earth has 5 billion years to live, and it is likely that the Earth will eventually be swallowed up by the aging and expanding sun. How long the sun can live and how long it can live, then how long the earth can live.

The life span of the earth should be 3 billion years, the vitality of the earth is very tenacious, and the life span of the earth is also very long.

I think the life span of the Earth may be tens of thousands of years, because the Earth is not dying out so quickly.

The ocean covers about 71% of the Earth's surface. The total area of the Earth's oceans is about 100 million square kilometers, and the average water depth is about 3,795 meters. The oceans contain more than 1.35 billion cubic kilometres of water, accounting for about 97 per cent of the Earth's total water.

1. Land and ocean.

Ocean, a term for earth science, is the general term for the most expansive body of water on Earth. The surface of the earth is divided by major landmasses into vast bodies of water that communicate with each other called oceans, the central part of the ocean is called the ocean, and the marginal part is called the sea, which communicates with each other to form a unified body of water.

The four main oceans of the earth are the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, and the Arctic Ocean, most of which are bounded by land and submarine topography. Today, only 5% of the seafloor has been explored, and 95% of the seafloor is unknown.

2. Earth. Earth is the third planet from the Sun and the only celestial body known to mankind to nurture and support life.

The surface of the Earth is roughly a land mass made up of continents and islands. The remainder is covered by water, mostly by oceans, bays, and other saltwater bodies, but also by lakes, glaciers, rivers, and other freshwater bodies, especially most by glaciers, which together make up the hydrosphere.

The Earth's equatorial radius is kilometers, the polar radius is kilometers, the average radius is about 6371 kilometers, and the equatorial circumference is about 40076 kilometers. The surface area of the earth is 100 million square kilometers, of which 71% is oceans and 29% is land.

Geographical impact of the ocean:

1 Impact on the climate.

The warm current warms and humidifies the climate of the coastal areas.

The 1982-1983 El Niño caused a sudden increase in precipitation and flooding in Peru on the eastern equatorial Pacific coast; Australia, Indonesia and other places on the western side of the Pacific Ocean continue to be dry and cause forest fires, and the whole of Africa is extremely dry; China is also affected by it.

2 Impacts on the distribution of marine organisms.

The impact of ocean currents on the distribution of marine life is mainly the formation of fishing grounds.

This is because both cold and warm currents and upwelling currents can carry nutrients to the surface of the ocean. At the confluence of cold and warm currents, the sea water is disturbed, causing it to churn up and down, so the rich nutrients in the lower layer are brought to the surface, which promotes the proliferation of plankton and the concentration of all kinds of fish to feed, which forms a fishing ground.

3 Impacts on marine pollution on land.

When land-based pollutants enter the ocean, ocean currents can carry offshore pollutants to other seas, expanding the scope of pollution.

However, as ocean currents move, pollutants can be transported to other seas, speeding up purification. For example, the oil tanker fuel oil leak in Spanish waters has seriously polluted 350 kilometers of coast, causing serious damage to local fishery production and ecological environment.

4 Impact on the nautical industry.

The same is true for us to go with the wind and the river faster than against the wind and the current. Navigation generally chooses near-shore downwind and Shunzhou water.

The above data is from the understanding network.

About 71% of the Earth's surface is covered by oceans. This includes the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the surroundings of South Antarctica and other oceans and coastlines. The remaining 29% is land, with land, islands and glaciers.

The ocean is the most extensive ecosystem on the earth, and plays an important role in the earth's climate regulation, material spike cycle, and biological wheel diversity.

With 3 billion tons of seawater per year, the Earth's ocean trenches are devouring seawater, but the sea level is rising year by year, which not only confuses many people. On the surface of the earth, most of the water is in the ocean, when the sea water is irradiated by the sun, it evaporates into the air to form water vapor, and when it encounters cold air, it forms small water droplets and falls on the earth, this whole process is the process of water circulation, so although the water on the earth is evaporating, the sea level on the earth can maintain a relatively stable state. In the same way, even if a trench swallows up a large amount of seawater, it will still return to the surface of the earth in a circular way.

1. The amount of seawater swallowed by the trench is very large. According to scientists' research, the trench is devouring a large amount of seawater, and according to incomplete estimates, about 3 billion tons of seawater will be swallowed up into the Earth's interior every year. If this consumption continues, it may be that in the near future, all the seawater will be swallowed up by the earth's interior.

But it is true that the sea level has risen.

2. How does seawater enter the Earth's interior? If we have studied geography, we all know that there is a sea trench called the Mariana Trench, which is very deep. At the point of the ocean is the hard seabed, which can also be said to be the surface of the earth's crust, but the seabed is not sealed, but has a certain gap, so that the seawater will pass through the subduction zone of the seabed and enter the depths of the earth.

3. Seawater will return to the surface in other ways. But while seawater enters the depths of the Earth, according to scientists, it may still return to the surface in a way we don't know about. The rise in sea level is caused by global warming, people emit carbon dioxide, which causes the temperature to rise, the water will expand when it encounters heat, and the volume will also increase, in addition, the melting of some glaciers will cause more liquid water to enter the ocean, thus causing the rise of sea level.

Because the water on Earth is constantly circulating and it rains every day, the sea level has not dropped.

Because the earth has a water cycle, I have taught physics in junior high school, don't tell me I don't know.

The Earth will face strong radiation, altitude sickness and a lack of water for humans. As for how long humans can last in the absence of an ocean, although there is no definite time, it is certain that in a short period of time, the earth will become uninhabitable, which will eventually lead to the extinction of human beings.

As we all know, the earth is like a water ball, accounting for 71 percent of the earth's total area is oceans, and 30 percent of the earth's total area is land. The oceans regulate the temperature of the Earth, and the southern and northern parts of the planet are generally relatively cold, while the equator is hotter. Ocean currents naturally move warm tropical water to the south and north, and cold water back to the equator to reach the Earth's temperature balance.

It can be said that because the equator receives relatively more sunlight, if there is no absorption and regulation effect of the ocean, it will lead to continuous high temperatures at the equator.

The disappearance of the ocean will not only cause the high temperature near the equator to rise and scorch the surrounding area, but also the lack of solar radiation in the ocean will cause the earth to experience strong solar radiation, which will cause frequent sunburn of animals, humans and plants.

If the oceans disappear from the Earth, a vacuum of 1.3 billion cubic kilometers could be created. As a result, a large amount of air poured directly into the original location of the ocean, which in turn redistributed the air throughout the earth. In this case, the air pressure will drop sharply, and the air will begin to become thinner, triggering altitude sickness, until humans begin to have difficulty breathing.

Of course, in the process, a large amount of air quickly pours into the original vacuum area of the sea, so it will also cause global winds. It is possible that these winds will exceed 300 to 1,000 kilometers per hour, which will cause most of the human buildings to be destroyed by the wind, and even let tens of thousands of tons of air directly impact the earth's crust, causing the deformation of the earth's crust.

Because the Earth's oceans occupy a total area, when the oceans disappear, the world's water will disappear as well. Human water can only be used using water sources such as rivers, ice sheets, lakes and groundwaterYou must know that 68.7% of the earth's freshwater is currently frozen into glaciers, and under such circumstances, the melting of ice sheets is difficult to meet the daily water needs of human beings. It is difficult to maintain the normal operation of the water cycle system by using only groundwater.

After all, clouds can only be formed by the existence of the ocean, and clouds will not form after the ocean disappears, resulting in precipitation becoming very scarce. This has made the earth slow down into a desert, and even made the earth's freshwater resources become less and less until there is no scumbag and stupid water available. In addition, in dry climates, frequent fires will also cause large fires to produce a lot of carbon dioxide, which will make the earth hotter and hotter, and gradually become uninhabitable.

In short, the disappearance of the vast ocean from the earth will cause a series of problems on the earth. While there is no definite amount of time for how long humans will last in the vanishing oceans, it is certain that the Earth will become uninhabitable in a short period of time, leading to the extinction of humans.

When the vast stool wheel ocean disappears from the earth, the earth will become a dry earth without moisture, the earth's temperature will continue to rise, the air pressure will drop sharply, and it is very likely that human beings will not last for three days in the absence of the sea.

If the vast ocean of the motherland disappears from the earth, the earth will lose its water source, and if human beings do not have a marine environment, they will not be able to hold on for a year.

Personally, I feel that if the ocean disappears from the earth, then the human ecosystem will completely collapse, because the sea fiber hunger and the animals, plants, and organisms in the ocean are all important parts of our ecological system.