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Many scholars believe that the collapse of the Indus valley civilization was caused by climate change...By 1800 BCE, the Indus valley civilization climate grew cooler and drier , and a tectonic event many have diverted to disrupted river systems
The Three-Fifths<span> Compromise was a compromise reached between delegates from southern states and those from northern states during the 1787 United States Constitutional Convention.</span>
Dude it's True,Pretty obvious.
Ozone is your answer! a natural occurring gas in the stratosphere & considered pollutant in the lower atmosphere!
