Respuesta :
The hypothesis is
If more dry cells are connected end to end, a light bulb will work longer because there is more energy available.
The variables are
the number of dry cells connected end to end
the duration of the light bulb working
If more dry cells are connected end to end, a light bulb will work longer because there is more energy available.
The variables are
the number of dry cells connected end to end
the duration of the light bulb working
Answer:
The answer is not c I believe it is A
Explanation: