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Mellokkhaos Mellokkhaos
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Posts: 313
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5 years ago
Technician A says that major sources of chemical dangers are from solvents containing chlorinated hydrocarbons. Technician B says that the use of heptane or xylene helps to protect the ozone layer. Which technician is correct?
A) Technician A      B) Technician B      C) Both technicians      D) Neither technician
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wrote...
5 years ago
 C
Mellokkhaos Author
wrote...
5 years ago
Such a godsend, you helped me and my friend big time
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