Spam is a big problem on the internet.
What is Spam?
Spam is when something gets sent out to thousand of addresses on email. Gmail has filters to prevent spam from getting in the Inbox but it still clogs up the internet and servers. The basic definition for spam is a junk email.
What Spam looks like
If you look in your Spam you may see an email like "Call this number to win 100 dollars today" or something like that. People may be using Fraud to get money from you on your spam emails. Usually spam is trying to get you to go to certain websites to buy stuff.
How to Avoid Spam
The one key thing to avoiding spam is not replying to the spam emails.If you reply those people will know you are actively using your email account. You can also just delete every spam email that comes into your filter.