What were some negative effects that the native americans brought to the new world?

With an american government question

Hurricane katrina is arguably an effect : a. an increase of living creatures and crowded habitats b. environmentalism c. global climate change d. unforseen factors

Which of the following is an executive check on the powers of the judicial branch of government? a. presides over senate during hearing to impeach the president b. enforces term limits for supreme court justices c. nominates supreme court justices and federal judges d. casts tie-breaking vote if the supreme court cannot reach a verdict