The answer is C) GPS fitness monitors
GPS monitors track your location over time, which is a better way of measuring distance traveled than a device that measures the number of footsteps you've taken.
If you monitor your practice run you can see how much your improved time wise.
Answer:
It can cause gene mutations, or can be carcinogenic
By putting protective garment against the radiation like lead
It shouldn't be phased out, its advantage outweigh its challenges and with time the solution to the challenges will be discovered.
Explanation:
