Explain how Emmett Chapelle would discover if life was present from
extraterrestrial soils?

seeing as no choices were provided, i'll do my best to answer it from knowledge.

job specialization promotes work ethic to the person doing the job. he/she may be strong in the arms and able to lift things, specializing him/her in a job where you lift and carry.

after defeating german forces in north africa allied leaders turned their attention to "italy," since this was the location that made the most geographic sense before invading northern europe via france. 

i think it is true i hope this is

a system of cooperative federalism emerged, as the powers of the federal government expanded.