Answers:
Yeah. Almost all websites here world track your ip address, and they usually state this within their lingo and conditions.
yes if you do wrong
Yes, and they do this by inserting cookies in your system. almost adjectives websites do this presently a days. You can clear out your cookies by going to the "Tools" menu in your browser.
Then go to option and you will see it at hand. You can afterwards clear out your cookies folder to exterminate these inconspicous trackers.