80. At which region can be found the peaks due to N-H, C-H and O-H stretching and bendingmotions?
A. 2500 to 2000 cm-1
B. 1500 to 1000 cm-1
C. 4000 to 2500 cm-1
D.2000 to 1500 cm-1
81. Hazardous wastes by definition may be all of the following EXCEPT
A. Explosive
B. Toxic
C. Corrosive
D. Reactive
82. Which treatment of wastes can be done in situ?
A. Air stripping
B. Chemical degradation
C. All of the given answers
D. Biodegradation