Do performance testing prior to setting up your routine, stretch before and after each workout, get the proper amount of rest and nutrition, and modify your workout as needed.
Answer:
Start recycling, walk or bike instead of drive, print as little as necessary, turn off the lights whenever you leave the room, use paper bags instead of plastic bags
Paint, crayons, markers, and colored pencils. There's so much to draw!
The speed is not stable/constant , it`s changing
