around 18 in every classroom
People of the Earth has 587 pages.
6 billion people live on Earth.
There are 6 billion people on Earth in 1999.
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yes there are many many many many many many people on earth even over a trillion people
how many families of at least two people living together are on the earth
Well noone can know this question because do you even know how many people are on the earth. There's a lot!!!
There is about 7 billion people on this earth.
7000000000
An atom
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