How big is the land area of the earth, and how much land area is occupied by the earth

The area is about 511934 square kilometers.

The size of the earth is about 18.2 billion cubic kilometers, the area is about 511934 square kilometers, the radius of the earth's equator is kilometers, and the circumference of the equator is 475 kilometers.

For example, in the application of space technology, the determination of the flight orbits of missiles and artificial satellites, the understanding of the internal structure of the earth and some physical phenomena on the earth's surface, and astrophysical research, it is necessary to grasp all kinds of accurate numerical values in the relevant aspects of the earth.

When we live on the earth, we see endless mountains, endless plains, endless deserts and Gobi deserts, and vast seas ......If you get on an airplane and look down from the sky, you will feel that the land is really vast. How big is the Earth? Scientists have calculated that it has a surface area of about 100 million square kilometers, a volume of about 1,080 billion cubic kilometers and a weight of about 60 trillion tons.

If you go all the way south from its northernmost North Pole, it would be 20,000 kilometers to reach its southernmost South Pole. For such a long distance, if you walk 50 kilometers per day, you have to walk continuously for 400 days; If you take a jet that can fly 800 kilometers per hour, it will take you 25 hours to arrive. And that's only half a circle of the Earth.

If we follow its largest parallel, the equator, to the east or west, to fly a full circle, and then return to the original starting point, it will take more than 50 hours, and we will have to fly for more than two days in a row. It took nearly three years for the navigator Magellan to lead a fleet around the globe. The size of the earth can be imagined.

If we compare the area, the entire earth's area is equivalent to 53 times the area of China's territory and 2,000 times the area of the British mainland. But only 29% of the Earth's surface is land, and 71% is ocean.

The size of the Earth can be described by a number of indicators. Now I will tell you the number of some indicators.

The average radius of the Earth is kilometers;

The Earth's equatorial radius is kilometers;

The Earth's polar radius is kilometers;

The average density of the Earth is to the power of kilograms cubic meters;

The mass of the Earth is to the power of ) kilograms;

The volume of the Earth is to the power of cubic kilometers;

The surface area of the Earth is to the power of square kilometers.

The volume of the Earth is cubic meters. To illustrate by example, suppose a person travels 50 kilometers a day, and it takes 127 days to walk from the center of the earth to the surface and 801 days to go around the earth. More than 23 million people stand in a circle hand in hand to enclose the earth.

Based on the world's population of 5 billion, the per capita land surface area is only square kilometers, and if only the land area is calculated, the per capita occupancy is less than square kilometers. Compared to the other planets of the solar system, the Earth is 110 times larger than the smallest Pluto, and 1,1316 times larger than the largest JupiterThe Earth is 48 times larger than the Moon and 11.3 million times the size of the Sun

1. The total land and ocean area of the rift on 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 kilometers, accounting for 29% of the world's total area. China's area accounts for the Earth's area.

2. The earth's ocean area is 361 million square kilometers, and the Pacific Ocean accounts for 165,250,000 square kilometers, which directly accounts for 1 3 of the earth, 26% of the Atlantic Ocean, 20% of the Indian Ocean, and the Arctic Ocean. The Pacific Ocean accounts for nearly half of the world's ocean area, and the other three oceans account for half of the West, India, and Arctic Oceans.

There are 224 countries and regions in the world, including 193 countries and 31 regions.

1. Asia. China, Mongolia, North Korea, South Korea, Japan, Philippines, Vietnam, Laos, Cambodia, Myanmar, Thailand, Malaysia, Khlong Brunei, Singapore, Indonesia, Timor-Leste, Nepal, Bhutan, Bangladesh, India, Pakistan, Sri Lanka, Maldives.

2. Europe. Finland, Sweden, Norway, Iceland, Denmark, Faroe Islands, Estonia, Latvia, Lithuania, Belarus, Russia, Ukraine, Moldova, Poland, Czech Republic, Slovakia, Hungary, Germany, Austria, Switzerland, Liechtenstein.

3. Africa. Egypt, Libya, Sudan, Tunisia, Algeria, Morocco, Azores, Madeira, Ethiopia, Eritrea, Somalia, Djibouti, Kenya, Tanzania, Uganda, Rwanda, Burundi, Seychelles.

4. Oceania.

Australia, New Zealand, Papua New Guinea, Solomon Islands, Vanuatu, Micronesia, Marshall Islands, Palau, Nauru, Kiribati, Tuvalu, Samoa, Fiji Islands, Tonga, Cook Islands (new), ** (United States).

5. North America.

Canada, United States, Mexico, Greenland, Guatemala, Belize, Savanalvado, Honduras, Nicaragua, Costa Rica, Panama, Bahamas, Cuba, Jamaica, Haiti, Dominican Republic.

The total area of the Earth is about 510,072,000 square kilometers, of which 71% is water and 29% is land.

The total area is 100 million square kilometers, accounting for the surface area of the earth.

There are six continents in the world, including the Eurasian continent, the African continent, the North American continent, the South American continent, the Australian continent and the Antarctic continent, with a total area of 100 million square kilometers, accounting for about 93% of the total land area.

The small piece of land surrounded by sea is called an island, with a total area of 9.8 million square kilometers, or about 7% of the total land area. Most of the land is distributed in the northern hemisphere, and the islands are mostly found on the east coast of the mainland. The surface of the land is undulating, with mountains, plateaus, plains, basins, etc.

The size of the Earth can be described by a number of indicators. Now I will tell you the number of some indicators. The average radius of the Earth is kilometers; The Earth's equatorial radius is kilometers; The Earth's polar radius is kilometers; The average density of the Earth is to the power of kilograms cubic meters; The mass of the Earth is to the power of ) kilograms; The volume of the Earth is to the power of cubic kilometers; The surface area of the Earth is to the power of square kilometers.

As we all know, our great motherland has 9.6 million square kilometers of land, splendid mountains and rivers, and vast resources. From the southernmost point to the northernmost point or the easternmost point to the westernmost point of our country, the straight-line distance is about 5,000 kilometers. If you travel on foot, it takes more than 100 days to walk from the east end to the west end or from the south end to the north end by walking 50 kilometers a day.

Our territory is vast enough, right? However, it occupies only about two percent of the Earth's surface. How many days would it take to circumnavigate the globe at a speed of 50 kilometers a day?

It will take two years and two months! Even a flight around the earth along the equator in an airplane traveling 800 kilometers per hour takes 50 hours! How big is the surface area of the earth?

Consider the following figures: the Earth's equatorial circumference is 40,075 kilometers, the Earth's meridian circumference is 40,009 kilometers, and the total area of the Earth's surface is 510,000,000 square kilometers. What is the concept of 51,000 square kilometers?

Let's compare some of the regions we are more familiar with: Asia, the world's largest continent, occupies only 9 percent of the earth's surface area; And the land area of the United Kingdom is less than 2,000 times the surface area of the earth!

In the 21st century, scientists have reaffirmed the age of the earth, believing that the earth was created much later than the solar system, with a span of about 100 million years, which is much later than the previously thought 30-45 million years. Previously, scientists calculated that the solar system was formed 100 million years ago through the formula for calculating the age of the solar system, and the age of the earth was about 3 billion to 4.5 billion years later than the solar system, about 100 million years ago. In 2007, Swiss scientists revised the data to conclude that the Earth was created 62 million years after the formation of the solar system.

Scientists generally calculate the age of the Earth and the Moon from two radioactive elements, hafnium-182 and tungsten-182. The decay period of hafnium-182 is 9 million years, and the isotope after decay is tungsten-182, which is one of the components of the earth's core. Scientists believe that almost all of the hafnium-182 element had decayed into tungsten-182 by the time the Earth was formed.

Only a very small amount exists, and it is this trace amount of hafnium-182 that can help scientists calculate the true age of the Earth. A professor at the Niels Institute said: "All hafnium completely decays into tungsten.

The surface area of the earth is 100 million square kilometers, and the diameter is about 12,742 kilometers. The volume is about zhi1,083.2 billion cubic kilometers (207 3 10 dao12 km3). Earth is one of the eight planets in the solar system.

The Earth rotates from west to east while revolving around the Sun.

The total land and sea 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 total global area, and the land area is about 100 million square kilometers, accounting for 29% of the world's total area.

The Earth's surface area is 100 million square kilometers, with a diameter of about 12,742 kilometers. The volume is about 1,083.2 billion cubic kilometers (207 3 10 12 km 3). Earth is one of the eight planets in the solar system.

The Earth rotates from west to east while revolving around the Sun.