They actually don't know for sure what led to the decline but a lot of people believe that the Aryans invaded and conquered the Indus Civilization which would make sense because they were the next people group to live there. I hope this helps!
Answer:
Im not sure honestly but i would guess like twice maybe I have no idea
Explanation:
D. The accepted interpretations about past events can change greatly over time
Lodge sabotaged the League covenant by declaring the United States exempt from Article X. He attached reservations, or amendments, to the treaty to this effect. Wilson, bedridden from a debilitating stroke, was unable to accept these changes. He asked Senate Democrats to vote against the Treaty of Versailles unless the Lodge reservations were dropped. Neither side budged, and the treaty went down to defeat.
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Because it’s first hand information
