A.She taught chemistry and microbiology courses in a college. B.She gave lectures on how to become a public speaker. C.She helped families move away from industrial polluters. D.She engaged in field research on environmental pollution.
A.She taught chemistry and microbiology courses in a college.
B.She gave lectures on how to become a public speaker.
C.She helped families move away from industrial polluters.
D.She engaged in field research on environmental pollution.