[What elements are these jobs of mine?]

Currently I'm working both as a language teacher online (through Skype)
and I also own my own travel agent which takes tourists around. I've
heard that jobs giving service fall into the earth element, yet I'm not
really sure about it.
So .... based on the characters of my work, what element is my online
language teaching job, and what element is my travel agent job?
Thank you