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Only a tiny fraction of it is. Most of earth's surface is desert or tundra, and as such is largely unoccupied. Mumbai has 30,000 people per square kilometer. Karachi, Pakistan has about 20,000. Sapporo, Japan, about 5000. Denver, Colorado has only 1,500 people per square km.
The median of the world's 125 largest cities is Manchester, UK, at about 4000 people per square mile. We'll use that for our average. There are a little over 7 billion people on earth now. Using the average of 4000/km2, that works out to 1.75 million square kilometers (675 thousand square miles) of "urban" landscape, which would include roads, bridges, etc.
Approximately 150 million square km of earth's surface is land, so 1.75/150 = just a little over 1% covered by human construction. This estimate seems reasonable.
What else can I help you with?
How much area does ice occupy on earth?
Roughly 10% of Earth's land area is covered by ice in the form of glaciers and ice caps. In addition, about 7% of the Earth's surface is covered by ice in the form of ice sheets in Antarctica and Greenland.
What is the planet most covered in water?
Earth is the planet with the highest percentage of surface area covered by water, with approximately 71% of its surface covered by oceans.
What percentage on earth's surface is covered in glaciers?
it is 28% of the world was covered by glaciers. 28% of the earth was covered by Glaciers during the Ice Age.
Which shows the large area of earth?
The large area of Earth is primarily covered by oceans, which account for about 71% of the planet's surface. The remaining 29% consists of continents and islands, with diverse ecosystems and landscapes. Among the continents, Asia is the largest, while Antarctica holds the record for the largest ice-covered area. Overall, Earth's vastness is characterized by its varied geography and extensive bodies of water.
What is Earth's surface area?
The total surface area of the Earth is 510,072,000 square kilometers, but only 29.2% of that, or 148,940,000 square kilometers is land. The rest is covered by water.
How much area of earth is covered by water?
Approximately 71% of the Earth's surface is covered by water.
What percentage of the earth is covered by deserts?
About 33% of the land area of the earth is covered by deserts.
What area is covered by Antarctica on earth?
Antarctica covers about 10% of the earth's surface.
How much area does ice occupy on earth?
Roughly 10% of Earth's land area is covered by ice in the form of glaciers and ice caps. In addition, about 7% of the Earth's surface is covered by ice in the form of ice sheets in Antarctica and Greenland.
What is the planet most covered in water?
Earth is the planet with the highest percentage of surface area covered by water, with approximately 71% of its surface covered by oceans.
During the most recent ice age glaciers covered about what percent of the earth's land area?
During the most recent ice age, glaciers covered about 30% of the Earth's land area.
During the most recant ice age glacier covered about percent of the earth's land area?
The previous answer was incorrect. NOW the Earth's surface is covered with ice, but during the most recent ice age, NEARLY 30% of the Earth was covered by ice!I'm a little bold
How much of the earth was covered in rainforests 100 years ago?
Well, 50 years ago 14% of the earth was covered in rainforests - all around the equator. But 100 years ago it was not destroyed at all - it probably just completely covered the whole equator!
What percentage of the earth is covered by the Indian ocean?
The percentage of Earth covered by Indian ocean is 14.4. When converted into kilometers this area comes to 68,556,000 square kilometers.
The entire area of earth's surface is 510 million square kilometers. What is a good estimate of the area of earth's surface that is covered by water?
About 71%
How much surface area of the earth is covered by greenhouse gases?
Greenhouse gases, particularly carbon dioxide, are part of the Earth's atmosphere; as such, they cover all of the Earth's surface. The whole world is covered by atmosphere.
Is there more land or water?
water - the earth is approximately 72% water if measuring by surface area....which is the same percentage as the human body - very interesting right?
