4.   a stress is considered a "bad" stress when it           a. cannot be eliminated.   b. keeps a person from feeling good.   c. challenges a person to do better.   d. doesn't lead to a productive end.

surface mining destroys mountain tops, landscapes, forests and wildlife habitats. on top of that, it leads to soil erosion and destruction of agricultural land. the landscape changes can also disrupt river channels and streams, which leads to flooding. which, can destroy plant life and other animals as well.

explanation:

supercell thunderstorms are perhaps the most violent of all thunderstorm types, and are capable of producing damaging winds, large hail, and weak-to-violent tornadoes