Answer:
Manifest destiny was an a widely held belief in the 19th-century United States that its settlers were destined to expand across North America.
Explanation:I hope I can help you :)
Because they were on land that the Americans wanted to use, they weren't considered citizens to the government, and no one wanted to be the neighbor of an Indian (for some reason)
Switzerland would not blow up most of its cities and citizens if an invasion occurs. The answer is false.
<h3>What is an invasion?</h3>
This is an armed conflict that would cause a country to take war to the fronts of another nation.
The nation of Switzerland holds it as a duty to protect itself from enemies. Blowing and destroying their cities themselves would not serve this purpose.
During an invasion, Switzerland would try to make sure it's citizens are safely evacuated from harm.
Read more on invasion here: brainly.com/question/16316545
Probably the computer because it has allowed for may other technical and scientific developments since it was introduced