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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 percentage of a star's total lifetime is spent on the main sequence?
65percent
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 earths water is stored in ice and snow?
freshwater is 68.7% and total water is 1.9% on earth. i got this answer from explorelearning.com in the water cycle gizmo.
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 are lifetime kills on team fortress 2?
Lifetime kills are the total amount of kills you have made while playing TF2.
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)
