Question

2. Which sentence would be the best re-statement of this paragraph from the article. "Those Mysterious Comets"?

Answer 1

Answer:  

some comet are very difficult to see because they are made of water and dust and they reflect light very well, so scientists only know about those that make regular appearances, and some comets have not been discovered yet and due to that scientist both sky watchers and strong telescope to report new comets  and only them can identify them, although some comet can be seen easily by ordinary people

Explanation:

Although some comet are difficult to see, scientist uses sky watchers to help them to spot them, they also use strong telescope to identify them