D. for example, H20 isn't hydrogen or oxygen (an element) or hydrogen and oxygen(mixture) or the original number of atoms oxygen and/or hydrogen had. this is because hydrogen and oxygen came together chemically, so their original properties changes.
Founded by a seafaring people known as the Phoenicians, the ancient city of Carthage, located in modern-day Tunis in Tunisia, was a major center of trade and influence in the western Mediterranean.
the purpose is to get the teachers to stop using red pens because it is effecting the way the students feel, because the color red usually symbolizes anger and bad things, so it doesn't make the students feel good.
