Q: Due to the difference in the distribution of charge, water is what type of molecule?   A:

Answer: polar


Q: How many membranes form the mitochondrion structure of a cell?   A:

Answer: two


Q: What is the general name for a solid material that is formed via a natural process?   A:

Answer: mineral


Q: When wood is burned what kind of energy allows the wood to burn?   A:

Answer:
chemical