n the branch of geology that studies the characteristics and configuration and evolution of rocks and land forms. the branch of geology studying the folding and faulting of the earth's crust. the branch of geology that studies rocks: their origin and formation and mineral composition and classification.
1 Playing violin will not go by itself you know! As they say practice makes perfect. You don't have to practice an hour at once, just start with 15 minutes a day, and if you can keep up the good work, you can increase the practice time a bit every week or so.  Breaking up your practice is helpful.
So don't wait for your strings to break (which is cheap, but definitely not a good idea) I have two sources from which to say how often. My violin teacher says you should replace your violin strings every 250-300 hours of any kind of playing.So if an hour a day, then 250-300 days. A violin website says every 6 months.which is about 180 days which is probably for kids who practice about 90 minutes a day (on average).y violin teacher says you should replace your violin strings every 250-300 hours of any kind of playing. So if an hour a day, then 250-300 days.