Choose the word whose main stress pattern is placed differently. 1. A. environment​B.temperature​C.botanical​D.contaminant 2. A. untreated​B. aquatic​C.pollution​D.electronic 3. A. pollute​B. poison​C.damage​D.illustrate 4. A. presentation​B.radioactive​C.environmental​D.contamination 5. A. permanent​B.Chemical​C.dramatic​D. herbicide