B. child laborers and D. miners
Hope this helps :)
New scientific knowledge help the building of the Panama canal because there was a decrease of workers getting sick of malaria and yellow fever. It was Colonel Gorgas, the Chief Medical Officer, who have read about discoveries linking mosquitoes and malaria. Due to these readings, he succeed in eradicating the cause of the disease therefore a decrease in people getting sick.
It’s B because I looked it up lol
One would be the Great Wall of China, and another would be the Ming Tombs.
Explanation:
Arkansas Trail of Tears, along which Cherokee, Choctaw, Creek, Chickasaw, and Seminole Indians traveled in the 1830s.
