Which of the following can be said about the use of agriculture?
a. it stunted the growth of civilization and development.
b. it prohibited the use of machinery.
c. it has included practices that led to pollution of soil and water.

the truman doctrine was an american foreign policy whose stated purpose was to counter soviet geopolitical expansion during the cold war. it was announced to congress by president harry s. truman on march 12, 1947, and further developed on july 12, 1948, when he pledged to contain threats to greece and turkey.

answer; both surfaces of the membrane are nonpermeable