Resources Flashcards
Natural resource
A material supplied by nature that is used by humans and other organisms.
Classify
To organize into groups based on a system.
Nonrenewable resource
A resource that is replenished at a slower rate than it is used.
Renewable resource
Material made by nature at least as quickly as people use it.
Mineral
A naturally occurring nonliving substance.
Rock
A natural substance made from one or more minerals.
Efficient
Able to produce the effect wanted without wasting time or energy.
Transform
To change in form.
Natural gas
A mixture of methane and other gases formed underground and used for energy.
Hydroelectric energy
Energy produced by moving water.
Effect
A change that happens because of some kind of action.
Pollution
The presence of harmful substances in the environment.
