Excess carbon dioxide in the atmosphere is absorbed by in the process of carbon dioxide exchange. 1) soil 2) animals 3) oceans 4) plants

The correct answer is 4. Plants.

Plants use carbon dioxide for the photosynthesis process where they use carbon dioxide to form energy rich molecules and release oxygen to the atmosphere. The carbon is present in atmosphere as carbon dioxide in higher concentration and methane in lower concentration. Carbon dioxide is removed by several processes such as by the formation of carbonic acid when the surface ocean water cool down and absorb more carbon dioxide near the poles, through conversion of the reduced carbon to carbonates or organic tissues like shells and by photosynthesis of plants which is an exchange process where plants absorb carbon dioxide and in turn release oxygen.

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.