Laws can be tested over and over and their results will still be the same, and laws cannot be disproved. Theories can always be disproved beause they are tested and experimented continously and results can change. Laws can't be theories but theories can be turned to laws. Hope this helps, didn't know an exact answer to that but I hope you can draw your answer from this information.
Digestive system occurs when youthe nutrients move from the digestive system into the blood system
Carbon forms Covalent Bonds.
Answer:
Scientists can study tree rings in ice to learn more about past climates.
Explanation:
i think this is right one.