[the website http://www.worldometers.info/ shows updated data as a digital display]
the average diameter of the Earth (giant blue marble) is 12,742,000 m.
water makes up 71% of the Earth's surface
Thursday 26 March 2009
space per person
the world's population is presently around 7.8 billion
[the website http://www.worldometers.info/ shows updated data as a digital display]
the average diameter of the Earth (giant blue marble) is 12,742,000 m.
water makes up 71% of the Earth's surface
how much space is this per person?
[the website http://www.worldometers.info/ shows updated data as a digital display]
the average diameter of the Earth (giant blue marble) is 12,742,000 m.
water makes up 71% of the Earth's surface
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