Which of the following was a significant challenge in building the Panama Canal? A. Mosquitoes spread diseases to workers.

B. Engineering plans were often wrong.

C. Workers went on strike to get extra pay.

D. Congress did not provide enough money.

a. mosquitoes spread diseases to workers.

The one that is significant challange in building the Panama Canal is letter A or the frequent rains caused rivers to flood . The other challenge in building the Panama Canal is the outbreak of Malaria or the so-called yellow fever; it killed more then 20000 people

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.

answer: refers to a diverse array of media technologies that reach a large audience via mass communication. the technologies through which this communication takes place include a variety of outlets. your welcome i hope you me out in the future : (

explanation: