Answer:
One distinguishing feature between physical and chemical changes is that a physical change can be reverse or turn back to its original form, but chemical change cannot be return to its form because the material change.
Explanation:
2.a)R b)R c)L d)L e)R f)L g)L
Lamps heat up a coil inside a light bulb, TVs heat up tiny lamps behind liquid crystals to project a tiny image called a pixel
Answer:
hot air rises and expanded the balloon
Explanation:
thats it.
