It would be the energy source of "fossil fuel" that is formed when organic matter is trapped underground without exposure to air or moisture, since this material is eventually fossilized.
Here it goes:
Factories weren't easy back in the days. They were packed with workers working as hard as they could to have some food on the table when they got home. I was one of them. Factories were dirty, machinery wasn't as efficient and the environment wasn't very friendly. All we did for hours and hours was stacking, separating boxing, etc. Many people were ill and others exhausted.
Hope it helped,
BioTeacher101
Civil War and Reconstruction. 1861-1870.
Answer: The correct answer is the Silk Road, also known as the Silk Route,
Explanation: The Silk Road was a network of trade routes that connected China and the Far East with the Middle East and Europe. The Silk Road was first established when the Han Dynasty in China officially started trade with the West in 130 B.C. The Silk Road routes then stayed in use until 1453 A.D., when the Ottoman Empire boycotted trade with China and closed them.
Reaganomics emphasized a lessening of government intrusion into the economy and more of a freedom to businesses to pursue their goals.
