Answer: The American environmental landscape prior to the 1960's.
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Answer:
some jobs like doctors are recession proof because people will always get injured or sick or old so there will always a large demand for them
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Answer:
Writing began to disappear and the standardized weights and measures used for trade and taxation fell out of use. Scholars have put forth differing theories to explain the disappearance of the Harappans, including an Aryan Invasion and climate change marked by overwhelming monsoons.
Explanation:
<span>The Aztecs used Olmec styles for temples and the Mayan calendar for rituals</span>