Answer:
Control the hazard at its source.
Step-by-step explanation:
Hazard may be defined as any chemical, physical or biological substance that can cause a threat to the living organism as well the environment. This substance can be lead, viral and harmful rays.
The hazard can be prevented to come in contact with the living organisms. Proper safety equipment and procedure are known to reduce the hazard. The hazard at the basic level can be eliminated by knowing the source that causes the hazard.
Thus, the answer is control the hazard at its source.