North America has several different mountain ranges, which presented challenges as settlers moved west. Which of the following best describes a way that mountains benefited North American countries? (3 points) Question 1 options:

1)

The mountains became tourist attractions, which helped the economy.

2)

They provided a physical barrier that protected North America from invasion.

3)

Mountains offered many resources such as coal and minerals.

4)

Overseas trade became easier than transcontinental trade.