Stactics about the climate in a tundra ecosystem were collected for 30 years. which hypothesis is about a population of caribou could be made based on the climate data collected?

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explanation:

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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.