trimming dead leaves

I was just wondering... my plants are about 4 to 5 weeks old and I think one go nute burned... the upper, newer growth is green as hell, but the oldest leaves on the bottom turned yellow and crumbly... should I trim them off? I dont think they will survive (the leaves), and they look really bad.... if so, where do I cut them?

You can but dont really need to a dead leaf will fall off but if it bothers you you can .If its dead it wont take anything to come off touching it will probably make it fall off if its stuck pretty good leave it alone til it falls.

alright, thanks for the advice

cut em up dammit. cut em