Yes, geographers do study the growth pattern of world population; its a branch of geography called demography
If we will base our answer on Hertzsprung diagram, we
will see that mass and luminosity are directly related, which means, long lived
stars begin their lives with more mass and a larger amount of hydrogen fuel,
hence hydrogen is abundant before than now. They are more luminous during their
main sequence lives. Giant stars and supergiant
stars have great masses, so, they have greater luminosities.
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Venezuela ................
the Babylonian Map of the World :)
≈ФωФ≈ More commonly known as the Babylonian Map of the World, the Imago Mundi is considered the oldest surviving world map. It is currently on display at the British Museum in London. It dates back to between 700 and 500 BC and was found in a town called Sippar in Iraq.
°ω° θεθ ⊕ω⊕ ∅¬∅