TOR is a browser which you can use to stay anonymous online and can be used on surfing deepweb and its just like a google chrome since its just a browser and theres no way on earning bitcoin thru it. The main thing here is that you can earn bitcoin on other way but on on TOR, theres no relation on it, just surf into these forum and read up somethings you will surely find on what you seek, earning opportunities are lots if you do know how to read up and follow them.