Explain how an air conditioner could also be used to heat a room for 40 points and includes brainliest

Turn it on to warn and let is run then turn it off

That's easy, you can turn the system to heat air conditioner, or you can use a heat pump, a heat pump makes the air conditioner's air go warmer instead of normally, cooler. I tried my best, I really want 40 points.

Your answer is c. explanation: plasma  is the fourth state of matter, derived from the gaseous state of matter.  plasma  can contain free  electrons  and/or  ions. while  plasma is never neutral, it can either be positively or negatively charged.  gases, however, are electrically neutral.