Answer:Many scholars believe that the collapse of the Indus Valley Civilization was caused by climate change. Some experts believe the drying of the Saraswati River, which began around 1900 BCE, was the main cause for climate change, while others conclude that a great flood struck the area.
Explanation:
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<span>C)He was appointed as a state judge.</span>
It hurt the south for a while, slave labor was good for the south's economy but bad for competition up north because nobody could find a job if all the slaves worked for free. The removal of slavery cemented this competition-based method into America.