Answer:
Me can answer lol but i already helped.
Read the comments people!
Here are 3 reasons why it is important to laugh.
1. It is important to laugh so that people know that you get the joke or are paying attention.
2. Laughter boosts the immune systym.
3. Laughing relaxes your muscles for up to 45 minutes after.
I don't know if you want the answer to be in paragraphs but i can still do it if that is how you want it.
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
A because they all have the -ing