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.
Their knowledge allowed them to take control of the production process and the training of apprentices.
Answer:
1. is the sandwich 2. is the parade 3. is public park and 4. is lighthouse
Explanation:
Not 100% sure but it kinda makes sense. Let me know if I'm wrong plz
It would be B I learned about this before pls mark braliest hehe.
Relations between India and Pakistan have been complex and largely hostile due to a number of historical and political events. Relations between the two states have been defined by the violent partition of British India in 1947, the Kashmir conflict and the numerous military conflicts fought between the two nations.