Chewing bread, tearing paper, breaking rocks
Answer:
oil
Explanation:
Lipids are fat and oils are lipids
Heat can be transferred from one place to another by three methods: conduction in solids, convection of fluids (liquids or gases), and radiation through anything that will allow radiation to pass. The method used to transfer heat is usually the one that is the most efficient. If there is a temperature difference in a system, heat will always move from higher to lower temperatures.
The spread of disease among passengers
