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.
En el siglo XVIII, una creciente población, entre otros factores, llevó a los españoles a dividir el virreinato del Perú para que pudiera gobernarse de manera más efectiva. Este movimiento resultó en dos nuevos virreinatos: Nueva Granada y Río de la Plata.
I speak English and Spanish.
De nada
Glacier mountains and water from the melting ice
Historians look for causes and effects that help to explain how and why events happened.
I think it would be B; Reconnaissance
