The b best answer that I could see is D because it correlates to the actual question. But c also looks good because it gives a reason as why not to buy them from a shop/private owner.
Best of Luck...Nathan...L.
Macbeth is fearful about hearing the witches prediction about his future because killing the king was considered sinful so therefore he would be a sinner however he was excited about the prediction of his future because he would be a king meaning he would gain power.
Explanation:
Examples of physical changes are boiling, melting, freezing, and shredding. Many physical changes are reversible, if sufficient energy is supplied. The only way to reverse a chemical change is via another chemical reaction.
A discrete quantity of energy proportional in magnitude to the frequency of the radiation it represents
