If the earth subtracts the ocean area, only the land area is counted, so how many people do you need

The total area of the earth is 510000000 square kilometers, and the earth's land area is 149000000 square kilometers, accounting for the earth's surface area.

Target. An adult with shoulders width.

1 meter, a meter or more with a large belly, less than a meter thin, even if a person occupies an area of 1 square meter, it can probably stand 1490000000000 people, that is, 149 billion people.

To solve this problem, we need to first calculate the total area of the earth's land, then calculate the average land area occupied by each person, and finally divide the total area by the average area occupied by each person to find the number of people needed to fill the land.

Known surface area of the Earth: 510000000 km².

Known ocean area: 46,332,000 square kilometers.

The total land area can be calculated based on the total land area = the surface area of the earth - the area of the oceans

510000000 - 46332000 = 463668000 sq km.

The average land area occupied by each person is known: 100 km².

Obviously, the number of people needed to stand on land is:

463668000 100 = 4636680 people.

So, to stand on land, it takes about 4636680 people.

If there are 10 people per square meter, 1 square kilometer can stand 10 million people, and 100 million square kilometers of the earth can stand 1,500 trillion people.

One person almost stands one, almost 540 billion people.

71% ocean, 29% land, and the Earth is generally blue when seen from space. The main components of the atmosphere are nitrogen and oxygen, as well as small amounts of carbon dioxide and argon.

The total surface area of the Earth is about 100 million square kilometers, about the surface area is covered by water, and most of the surface of the Earth's crust (100 million square kilometers) is below sea level. The crustal surface of the seafloor is mountainous, including a global system of mid-ocean ridges, as well as submarine volcanoes, trenches, submarine canyons, submarine plateaus, and abyssal plains.

Hydrosphere resources. In the solar system, the surface is covered by a large area of water, which is one of the distinguishing features that distinguishes the Earth from other planets, from which the Earth's nickname "Blue Planet" is derived.

The Earth's hydrosphere is mainly made up of oceans, but also land, sea, lakes, rivers and groundwater that can be as deep as 2,000 meters. The Challenger Deep, located in the Mariana Trench in the Pacific Ocean, is the deepest part of the ocean.

The total mass of the Earth's oceans is about tons, which is equivalent to 1 4400 of the total mass of the Earth. The ocean covers an area of square kilometers, with an average depth of 3,682 meters and a total volume of about cubic kilometers.

If all the Earth's surfaces were at the same altitude and were a smooth spherical surface, the average depth of the Earth's oceans would be kilometers.

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Analysis: The total land and ocean area of the earth is about 100 million square kilometers, of which the ocean area is about 100 million square kilometers, accounting for 71 of the world's total area, and the land area is about 100 million square meters, accounting for 29 of the world's total area.

What can happen when the Earth's oceans are inversely proportional to the land area.

It's heat and drought.

Until the extinction of life.

This is obvious.

In fact. Such a situation.

The moment is close.

Because. The seawater on Earth is drastically evaporated and falls.

So. In future riddles.

The sea water decreases exponentially.

The heat of the sun will not be largely offset.

This will lead to a drastic reduction in the size of the ocean.

Eventually, it leads to the thirst of the earth.

Thereby. There will be a situation where the sea is dry and the rocks are rotting.

this day. It's not very far away.

The current sea and land area.

It's already very close to inverse proportionality.

First of all, the sea level will rise dramatically, countless islands will be submerged, the climate on Earth will change, and many organisms will be on the verge of extinction.

The land area of the earth is 100 million square kilometers, and the area of the earth's oceans is 100 million square kilometers.

The land occupies about the surface area of the earth, and the oceans on the earth occupy about the surface area of the earth, with an average water depth of about 3,795 meters. The total area of the Earth's surface is about 100 million square kilometers. Ratio of land and sea area: 1. In the Northern Hemisphere, land occupies its total area, and in the Southern Hemisphere, land occupies its total area.

Earth-key finch is the third planet to be from the Sun and the only known object that gives birth to and supports life. The Earth's surface is roughly a land mass of continents and islands. The remainder is covered by water, mostly oceans, bays, and other saltwater bodies, but also by lakes, rivers, and other freshwater bodies, which together form a hydrosphere.

Composition of the Earth:

The Earth's atmosphere is mainly made up of nitrogen and oxygen. The tropics receive more solar energy than the polar regions and redistribute it through atmospheric and oceanic circulation. Greenhouse gases also play an important role in regulating the surface temperature.

The climate of a region is determined not only by latitude but also by factors such as altitude and proximity to the region and the ocean.

Severe weather such as tropical cyclones, thunderstorms, and heat waves often occur in a wide area and have a great impact on life. The Earth's gravitational pull interacts with other objects in space, especially the Moon, which is the Earth's only natural satellite. It takes about a few days for the Earth to revolve around the Sun.

The Earth's axis of rotation is tilted relative to its orbital plane, thus producing seasons on Earth.

The Earth's land and oceans occupy about one-third and two-thirds of the Earth's surface, respectively.

1.Introduction

The Earth's surface has vast landmasses and huge oceans, which is very important for understanding the basic makeup of the Earth. According to the available statistics, what proportion of the earth's land and oceans currently occupy each other? Let's take a closer look.

2.The proportion of the earth's land area is pure

The Earth's land area is the sum of the land area excluding the parts of water such as oceans, lakes, and rivers. According to UNESCO, as of 2019, the global land area is 148,940,000 square kilometers, while the total area of the earth is 510064472 square kilometers, so the global land area is about the same.

3.Proportion of the Earth's oceans

The Earth's ocean area is the sum of the ocean area excluding the parts of water such as land, lakes, and rivers. According to UNESCO, as of 2019, the global ocean area is 361126000 square kilometers, while the total area of the earth is 510064472 square kilometers, so the global ocean area is about the same.

4.The distribution of the Earth's land and seas

The distribution of the Earth's land and seas is uneven. Land is distributed in the five continents of the earth, of which Asia is the largest landmass, accounting for the total land area of the world; North America is the smallest continent and accounts for only one of the world's total land mass. The oceans are concentrated in the southern hemisphere, and the sea area south of Antarctica is the largest, reaching more than 20%.

5.Expanding Knowledge: Sea Level Rise

Global sea levels are rising as the global climate warms. According to the National Oceanic and Atmospheric Administration (NOAA), global average sea level has risen by about 21 centimeters since the mid-19th century, and the rate of sea level rise over the past 100 years has been about millimeters per year.

Sea level rise poses a serious threat to the global climate, ecosystems and human society.

6.Summary

The Earth's land and oceans are unevenly distributed on the Earth's surface, with the global land area accounting for about the total area and the global ocean area taking up about it. Asia is the world's largest land mass, and the seas south of Antarctica have the largest ocean area.

With global warming, the global sea level is rising, which poses a huge threat to the global natural environment and human society.

The amount of land on the earth and the sea is as follows

The ocean makes up about 71% of the Earth's area. The rest is land. 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, about 97 per cent of the planet's total water, and only 2 per cent of it is available for human consumption.

The cause of the formation of the ocean.

1. A layer of crust located on the surface of the earth, in the process of cooling and condensation, is constantly impacted and squeezed by the violent movement of the earth's interior, so it becomes folded and uneven, and sometimes it is squeezed out, forming ** and volcanic eruptions, spewing out magma and hot gas. This process of differentiation of light and heavy materials, resulting in great turmoil and major reorganization, was completed about 4.5 billion years ago.

2. After the earth's crust is cooled and shaped, the surface is wrinkled and uneven. Mountains, plains, river beds, sea basins, and various terrains gradually form Changjian.

3. For a long period of time, water vapor and atmosphere coexisted in the sky. As the earth's crust cools down and the temperature of the atmosphere slowly decreases, the water vapor condenses with dust and ash and turns into water droplets. Due to uneven cooling, the air convection is violent, forming thunder and lightning winds, and the turbidity of heavy rain is violent.

The surging flood through thousands of rivers and ravines converges into a huge body of water, which is the primeval ocean.

4. After the gradual increase of water volume and salinity, and the vicissitudes of geological history, the primordial ocean gradually evolved into the current ocean.

China's land area.

The People's Republic of China has a land area of about 9.6 million square kilometers, with a coastline of more than 10,000 kilometers on the mainland, more than 10,000 kilometers on islands, and more than 4.7 million square kilometers on the inland and border seas. There are more than 7,600 large and small islands in the sea area, of which Taiwan Island is the largest, with an area of 35,798 square kilometers. It is bordered by land with 14 countries and by sea with 6 countries.

If you change it, these creatures on land must be very happy, because their living space has become larger again.

The land will be more spacious, and people's lives will become richer.

The land area will become much larger, the ecological environment will definitely change a lot, and many fish in the sea will definitely be unacceptable.

The oceans cover about 71% of the Earth's area. It is one of the most expansive ecosystems on the planet, encompassing a large number of water bodies and habitats for marine life.

Specific data on the proportion of terrestrial water resources available to humans as a proportion of global water resources may vary, as the focus and methodology of estimates may vary. In general, global water resources include surface water (e.g., rivers, lakes), groundwater (e.g., aquifers), and snow and ice storage (e.g., glaciers, ice in the Arctic and Antarctic regions).

About 97% of the world's water resources are saltwater and only about 3% are freshwater. Freshwater available for direct human use accounts for only about about a fraction of the world's water resources, including surface and groundwater. This relatively small number underscores the preciousness of freshwater resources and the sustainable management of their needs.

It is important to note that the Earth's terrestrial water resources are not evenly distributed. Some regions may have abundant water resources, while others may face the challenge of water scarcity. Oaks people face important challenges in the use and management of water resources, including protecting water quality, improving water use efficiency and sustainable water management.

The ocean is a general term for "sea" and "ocean". Three-quarters of the Earth's area is covered by oceans. The total area is about 355,255,500 square kilometers.

These saltwater waters, which occupy a large area of the earth, are generally referred to as "oceans", and the waters on the margins of continents are called "seas".The total area of the ocean is to the power of 8 square kilometers. The average depth of the surface area is -3729 m, and the deepest point is the Mariana Trench in the western Pacific Ocean (-11034 m).

About 75% of the planet we live in is covered by oceans.