The eggs comes first every chicken is made out of an egg
Digital signals, on the other hand, are like a light switch. They have two distinct values that they can send, rather than an infinite set of values like in analog signals. ... Like a light switch, digital signals have two values. Digital signals send segments, while analog signals send continuous streams.
I believe the answer is B. I say Natural gas because the materials used for the natural gas can run out. Renewable energy sources are sources of energy that are continuous and do not run out. Biomass is gotten from waste of living things, as long as there are living things, it lasts. The wind keeps coming, so it provides more energy. Geothermal energy is the energy generated and stored in the earth. There will always be heat on earth. Hope i helped. Have a nice day. Happy new year.
