With a superconductor. Even better with a room temperature super conductor, of course you'll have to make hydrogen metal for that.
I would say that salt water would conduct electricity best.
humans conduct electricity because your body is made 70% of water. so its the best conductor.
Yes, Pencil Lead does conduct Electricity. Copper, Gold and Silver though are the best conductors.
Metals conduct electricity the best, as they have many free electrons that can easily move and carry electric charge. Plastic and wood, being insulators, do not conduct electricity well due to their lack of free electrons.
nonmetals
Electricity does not conduct heat. Your question is meaningless.
No, copper is not an electrolyte. Electrolytes are substances that conduct electricity when dissolved in water, while copper is a metal that does not conduct electricity in the same way.
Zinc, gold, silver and many others. You see all metals can conduct electricity.
No, air is not an electrolyte. Electrolytes are substances that conduct electricity when dissolved in water, whereas air is a mixture of gases and does not conduct electricity in the same way.
No, camphor does not conduct electricity. It is a type of organic compound, so it cannot ionize to conduct electricity.
The best conductor for heat and electricity is any type of metal element.
Yes, Pyrite can conduct electricity.