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Because 80% of the earth is covered in water. It is estmated that only 7 % of the earth is livable.
Wiki User
∙ 14y ago
Wiki User
∙ 6y agohas earth always been habitable
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What is the total percentage of the earths land area taken up by the seven continents?
99% of the worlds LANDsurface is covered by the continents
What percentage of the earths total surface area does Africa cover?
Africa is roughly 30 million Kms2, the earth is roughly 510 million kms2, so about 5.9% of the total surface area. As a fraction of the total land area of the earth which is roughly 149 million kms2 , then it is 20.3%
What change in earths total insolation would be caused by what?
Sunspots
Does the total amount of earths water change slowly or never?
both
How many ounces in 5973600000000000000000000 kg earths total mass?
2.10713e26 ounces.
What is the total percentage of the earths land area taken up by the seven continents?
99% of the worlds LANDsurface is covered by the continents
What professional baseball team has the worst winning percentage in their total history?
Through the 2008 season, the Tampa Bay Rays have the worst lifetime winning percentage of any MLB team with .417 (742-1037).
What percentage of a star's total lifetime is spent on the main sequence?
Roughly 90% of a star's total lifetime is spent on the main sequence, where it fuses hydrogen into helium in its core. After this stage, the star will evolve off the main sequence and follow a different path, such as becoming a red giant or a supernova.
What Earth layers make up the most percentage of earths mass?
The mantle and core make up the most percentage of Earth's mass. The mantle is the thickest layer and accounts for about 84% of Earth's total volume, while the core makes up about 32.5% of Earth's total mass.
What percentage of the earth's total land area does Asia compromise?
Asia takes up 8.6% of Earth's total land area.
How do you figure out the total of something when you are given a portion of it and a percentage of it?
Portion/Percentage = Total/100 So Total = 100*Portion/Percentage.
How to get the percentage of the total?
Divide the number of interest by the total and multiply the result by 100. That is the percentage of the total.
What percentage of the earths total surface area does Africa cover?
Africa is roughly 30 million Kms2, the earth is roughly 510 million kms2, so about 5.9% of the total surface area. As a fraction of the total land area of the earth which is roughly 149 million kms2 , then it is 20.3%
What does lifetime aggregate borrowing limit mean?
The total amount of federal student loan money you can borrow in your lifetime.
What is the total volume of earths water?
2/3
What is the equation to calculate the percentage of each substance in a mixture?
(percentage)x(how much of the substance)+(percentage)x(how much of the substance)=(total percentage)(total of substance)
What are lifetime kills on team fortress 2?
Lifetime kills are the total amount of kills you have made while playing TF2.
