The discoveries of astronomers like copernicus and galileo established what?

Galileo first discovered that the Moon had mountains just like Earth. He also discovered 4 of Jupiter's moons. ... Galileo felt that an astronomer named Copernicus had a better idea. Copernicus believed the Earth and other planets moved around the Sun.

in 1948, swiss engineer/amateur mountaineer george de mestral went hiking in the woods with his dog. when they arrived back home, george found burrs stuck to his dog’s fur. this inspired him to create velcro.

explanation:

the answers for the whole quick check is

1. b

2. b

3. a

4. c

5. b

6. a

7. d