Pls help I’m gonna fail

1. People nowaday use electricity to heat up their home

2. A/C, Heater, thermostat

Explanation:

- "the choice that is not an indicator of a chemical change is "state of matter changes". more common than not, chemical reactions produce energy in the form of light or heat. along with energy, they also produce a new substance called the product that could be in any state of matter (solid, gas, or liquid)."

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun