How did new scientific knowledge the building of the panama canal? a. fewer workers got sick from malaria and yellow fever. b. radios workers stay in touch with their families. c. better nutrition led to more work being done by laborers. d. airplanes were able to deliver supplies more quickly.

The answer is A.

Fewer workers got sick from malaria and yellow fever.

A. Fewer workers got sick from malaria and yellow fever.

New scientific knowledge helps the building of the Panama canal because there was a reduction in workers who are becoming sick of yellow fever and malaria.  The Chief Medical Officer Colonel Gorgas, was among the first who have learned about the revelations associating with malaria and mosquitoes. Due to those interpretations, he succeeds in abolishing the cause of the disease which could able to decrease the number of workers getting infected.

answer; (you have the right of way);

every society, in order to meet the needs of it's people, has to answer three basic questions:

- what should we produce?

- how should we produce it?

- for whom should we produce it?

this questions must be answered in order to, option b, aid in production decisions.

every country can't produce everything, no matter how rich their land is. it may be a matter of technology, resources or geographical conditions. so, these three questions must be resolved in order to get the most of the production of each land.

hope this !