I need help on Trench Warfare

Which of the following was the greatest short-term effect of spanish colonization on american indians? a. it sharply decreased their population b. it opened them to european ideas c. it gave them new crops to growd. it led to their disappearance from the americas i would appreciate the : ) i'm stuck between a couple answers

When did cornwallis surrender? a) january 1781 b) april 1781 c) july 1781 d) october 1781

Why does the united states supreme court allow hate speech under our freedom of speech?