Answer:
you did not show the options
Explanation:
Answer:
ice, air, ducks and fabric
Explanation:
its common sense
Answer:
There are often not more than one or two independent variables tested in an experiment.
A circuit is a closed loop that electrons can travel in. A source of electricity, such as a battery, provides electrical energy in the circuit. ... The appliance may, for example, provide light or heat or mechanical energy.
