The united states came up with all that
Answer:
Both are only physical changes.
Explanation:
The green stuff is cupric chloride, a byproduct of corrosion of the valve body or possible copper leachate in the water. Either way, it's typical of water leakage where the water is of low pH. Boiling sugar to make caramel is the same as eating sugar, just in a different form.
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Abolitionism is one of the many factors that lead to conflict between northern and southern states. This movement focused on getting rid of the institution of slavery. By emancipating (freeing) these slaves, Southern plantation owners would suffer a significant loss in profits, as slaves were not paid for their work.
This threat to Southern society caused them to rebel against this idea and any individual who supported it. This fear of freeing slaves ultimately lead in the secession of the Southern states, as the election of Abraham Lincoln in 1860 posed a serious threat to their way of life.
Answer:
Julius and Ethel Rosenberg
Explanation:
Julius and Ethel were married in 1939. They were member of the communist party. Ethels brother worked on the Manhattan Project and provided them with information. The Rosenbergs in turn gave that information to Harry Gold.
Julius & Ethel were the first american non military who were every put to death for being spys
