In this quotation, how does President Truman explain the role of the United States in the conflict with communism?
O The US must be neutral.
O The US must be in charge.
O The US must be an aggressor
O The US must be a peacemaker.

Which interaction between the atmosphere and biosphere takes place during plant respiration? plants use nitrogen and release oxygen into the atmosphere. plants use oxygen and release carbon dioxide into the atmosphere plants rely on available sunlight and release oxygen into the atmosphere. plants rely on mineral content in the ground and release carbon dioxide into the atmosphere.