If an individual possesses two recessive alleles for the same trait, the individual is said to be

answer; ////increased water pollution; ///////////////////////

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.

i'd have to say the answer is probable the second option "the geosphere interacting with the atmosphere"