Explanation:
Settlers used oil as an illuminant for medicine, and as grease for wagons and tools. Rock oil distilled from shale became available as kerosene even before the Industrial Revolution began. While traveling in Austria, John Austin, a New York merchant, observed an effective, cheap oil lamp and made a model that upgraded kerosene lamps. Soon the U.S. rock oil industry boomed as whale oil increased in price owing to the growing scarcity of that mammal. Samuel Downer, Jr., an early entrepreneur, patented “Kerosene” as a trade name in 1859 and licensed its usage. As oil production and refining increased, prices collapsed, which became characteristic of the industry.
Answer:
principles that restrict the extent of something
Answer:
The several kinds of penicillin synthesized by various species of the mold Penicillium may be divided into two classes: the naturally occurring penicillins (those formed during the process of mold fermentation) and the semisynthetic penicillins (those in which the structure of a chemical substance—6-aminopenicillanic ...
Answer: James Watt inventions and him being a mechanical engineer whose improvements in steam engine technology drove the Industrial Revolution.
Explanation:
Hope this helps
