Answer:
1.A lantern has a candle or fuel cell which heats the air and this hot air fills the sky lantern. The consequence of this is that the lantern rises in the air. This happens because the hot air inside the lantern is lighter than the cool air surrounding it. ... This fuel cell is lit before the lantern is launche
2.Whenever something becomes warmer, the kinetic energy of its atoms or molecules has increased. When matter gets warmer, the atoms or molecules in the matter move faster. It's easy to increase the kinetic energy in matter.