Question

what are renewable and nonrenewable resources? what will happen when nonrenewable resources run out? how can we save nonrenewable resources?

Answer 1

When nonrenewable (energy) sources run out, we need to use other sources, or make the equivalent fuels out of renewable sources (like making biodiesel or running cars on pure alcohol). Renewable sources are things we can grow, or not use up, such as solar, wind, tidal and geothermal power.

Nuclear energy from breeder reactors (which make more nuclear fuel than they consume) can also be considered a renewable source, but they tend to be expensive and risky because they make plutonium, a bomb material. There are only a few operating in the world today; most have been shut down.

Answer 2

Renewable resources:
http://www.answers.com/topic/renewable-resource

Non-renewable resources:
http://www.answers.com/topic/non-renewable-resources

Answer 3

Nonrenewable resources are coal, petroleum, gas, and uranium.