The major muscle group of the lower extremities are

Reversed polarity is when the hot and neutral connections at a receptacle are wired backwards/inverse—Home wiring is color-coded, and the black wire is “hot,” meaning that it is electrically charged or, as it is sometimes called, the “live” wire!

air, water, heat and noise pollution can all be caused by producing and using technology. consuming resources - non-renewable resources, including precious metals like gold, are used to make technology