Either A. or D. it depends on what kind of insulation you're looking for.
All three are bad for the environment because all three types release CO2 into the air and have throughout their constant usage helped with creating the greenhouse effect that traps heat and causes global warming. That's why clean energy is a necessity and people are developing harnessing wind and solar power.
Answer:
an increase in the temperature will increase the average kinetic energy of the molecules which causes the molecules to move faster
