Answer:
D. Chemical spills
Explanation: if ody ssey ware, assignment 6 Organisms and their Environment, and 12 Human Interaction p 2 chemical water pollutants cover this. Most strongly assignment 6 (if printed) p.10 under Restoring the Balance video transcript focusing on chemical spills emphasizes this. Although 99% of the time ody ssey matches an exact quote from an assignment. happy searchy- reading