The correct answer is B. Antoine-Laurent de Lavoisier was a French chemist, biologist and economist who discovered <em>the law of conservation of matter</em> in 1785.
This law states that during a chemical reaction, <u>the total mass in the system remains constant</u>, that is, the mass consumed of the reactants is equal to the mass of the products obtained.
Answer: A
Explanation:
Many laborer's died, which devastated families through lost means of survival and caused personal suffering; landowners who used laborer's as tenant farmers were also affected.
The danger and difficulty in escaping from slavery are hard to imagine. Most slaves were illiterate and had no money and few, if any, possessions. The colour of their skin made them easy targets during the daylight for those who would hunt them down—often with the help of bloodhounds—and return them to their owners.
He is best known for d<span>iscovering North America</span>
