Because he proved that the earth wasn't at at centre of the solar system like everyone thought it did. It also showed the sun doesn't move, it's the earth moving around it.
Pollution is one problem because of the factories and such
Answer:
A Biography of a public figure, a report issued by a government agency, and a blog run by a college student.
Explanation:
A pamphelt from an activist group wouldn't help, as it's a pamphlet which have very little information for a essay. A website by a reputable newspaper would be good, however, most newspaper websites catch within new things, not as much historical stuff.
John F. Kennedy. He was assassinated at the age of 46.
Answer:
5/7/2020 or 7th of may or thursday
Explanation: