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Help answer this question below.
total: 510.072 million sq km
land: 148.94 million sq km
water: 361.132 million sq km
note: 70.8% of the world's surface is water, 29.2% is land
Here are the radius and circumference of the earth.
Mean radius 6,371.0 km
Equatorial radius 6,378.1 km
Polar radius 6,356.8 km
Flattening 0.0033528
Circumference
40,075.02 km
40,007.86 km (meridional)
40,041.47 km (mean)
source: http://www.321answers.com/Education-Science/how-big-is-the-earth-/
Perhaps, the question should be phrased: how large is the surface of the Earth's land mass? Then it could be answered in miles or kilometers.
how much of the earths land mass is fit for habitation
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You're reading How big is the earth's land mass? And water mass?
Comments
sq km is not a mass measurement
by dblood on November 10th, 2005
The question is obscure. Do you mean what is the total mass of earth's landmass, or how big is earth's landmass.
by Shabba on December 13th, 2005
I think the obvious question is. Does this refer to the land mass and water mass as if it were flat........or are we referring to the land mass.Cos if it were land mass meaning the land as a whole would this also incorporate the the rise and fall or would we just be referring to the area of the world. and quite simply the percentage of the blue bits to the green bits... if it were laid flat....
by Sphoro on April 5th, 2007