Alab technician needs to clean medical instruments that have been exposed to bacteria. which electromagnetic wave would be most useful for this task?

Ultraviolet waves kill bacteria and germs.

The correct answer is ultraviolet  wave.

Explanation:

Electromagnetic wave is the wave in which both electric field and magnetic field are perpendicular to each other to the direction of the motion of the wave.

For example, Ultraviolet wave.

Ultraviolet wave is very harmful wave. The exposure of this wave can cause skin cancer.

This radiation has been used for disinfectant. Ultraviolet wave is used by a lab technician to clean medical instruments that have been exposed to bacteria. Bacteria contain DNA which is vulnerable to ultraviolet radiation. This radiation inactivates or kills the microbes.

Therefore, the correct answer is ultraviolet  wave.

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answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.