Covalent shares energy with metals and metals
Ionic bonds energy with nonmetals and metals
Duralumin. it mixed from copper and magnesium or aluminium. it use for flight
Answer: B
Explanation: The clouds act almost like a lid. Think of it like when you put tin foil over food before it goes in the oven. so that even after it is removed from the heat the tin foil traps it causing it to stay warm.