Answer: C). battery
Battery has the main job of conducting the electricity because it has the power to it's chemical energy into electrical energy.
Answer: if you are talking about scientific question or method than yes
Answer:
Porosity
Explanation:
Something that is permeable allows liquid or air to pass through it
Non Porous means doesn't allow liquid or air to pass through it, porosity is the opposite of this and allows liquid or air to pass through it.
Liter because liter is metric and the others are imperial
