Відповідь:

1.I think the greatest influence was the invention of airplane, anasthesia, and the Internet.

2.It's more convenient to live this way, but a lot of things are bad for the environment.

3.Definetely plastic, it takes a very long time to break down.

4.Soviet scientist who was the chief designer of the first rockets and satellites.

5.Science museums usually display items related to history, geology and the like.  Unfortunately, I have been to a science museum.

(или если вы были например с классом: Yes, I was, and I like it, everything I saw was very interesting)

6.Discovery reveals something that existed before and was not known, and invention is a completely new thing, created that didn't yet exist.

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