I think it's DNA forms a double helix and RNA consists a single strand.
I may be wrong...
Solar Cells are light to electrical
The dam is Kinetic to Electrical
Food is Chemical To Electrical
Rocket is Chemical to electrical
A gas has more free molecules, and it is air, not a tangible substance. Hope it helps! :)
Everything dead would just keep piling up and up and up and nothing would ever go away! The Earth would be like a giant landfill! <span />
