<span>the activity that requires the action of a first class lever in the body is: D. nodding
First class lever refer to a lever on which the resistance exist in one one side of the fulcrum and an effort is made on the other side.
Another example of a first class lever beside nodding are: Scissors, a crowbar, or a seesaw</span>
The answer to this is C. Radiation Exposure.
There is a possibility that he will find out [based on manga]
