Answer:
Why international relations is important, is that it goes beyond peace and war, past poverty and business; rather it explores the key players in world politics, intrinsic political patterns, and identifies the theories for how resolution and cooperation can be reached.
Explanation:
The correct answer, in my opinion, would be a pollutant. <span>A substance that enters Earth's cycles and does harm to living things is a pollutant. A pollutant is a substance that is introduced to the Earth which cause undesirable effects to living organisms. </span>
