Which of the following has had the greatest impact on South America's physical geography? Group of answer choices

its position between the Atlantic and Pacific Oceans

its numerous, large water systems

the heavy tectonic activity in the area

its many mountain systems

Which of the following best describes the 1957 events at central high school in little rock, arkansas? -governor faubus resisted the school’s integration with national guard troops, and president eisenhower sent federal troops to enforce integration.-under governor faubus, little rock police first fought, then enforced, the order to integrate the school.-president eisenhower sent national guard troops to resist the school’s integration, but governor faubus obtained a court order to dismiss them.-president eisenhower and governor faubus worked together to make the integration process run as smoothly as possible.