That was the system that became known as 'Apartheid'.
The Ancient Greek purposed the world was composed of atoms.
I think the phrase you are looking for is "natural resources" - these include fresh water, food and fertile soil on which crops can easily be planted.
<span>The policy of eradication has caused 1.75 million acres of Amazon rainforest to be cleared.
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What do you call the lines on a topographic map that indicate the elevation of the land forms?
topographic lines