Friction we use everyday by putting oil against and object so not as much friction is given off at one time. Electricity we use everyday at school, home, and at work. We would still be holding candles in our hand if it weren t for electricity. Gases are also a very important part of the earth. We breathe in several different gases at one time.
Some machinery depends on gases to work.
There are all sorts of different gases. Some are made in laboratories and some are found in certain places in the world. 274 Heimler, Charles H. and Price, Jack Physical Science. A Guide to the Elements.