Pollution 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 is used
Renewable resource
Material that is made by nature at least as quickly as people use it
Minerals
A naturally occurring, non living substance
Rocks
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 os some kind of action
Pollution
The presence of harmful substances in the envirment
