UNIT 7

Natural Resource: Materials humans can use to make more complex products, provided by the earth.

5 NATURAL RESOURCES

• Fish
• Trees
• Petroleum
• Crops
• Water

Nonrenewable Resource: A natural resource that can't be remade or regrown at a scale comparable to it's consumption.

NONRENEWABLE RESOURCES

• Oil
• Fossil Fuels
• Coal
• Natural Gas

Renewable Resource: A resource which is replaced naturally and is used again.

RENEWABLE RESOURCES

• Oxygen
• Fish
• Water
• Solar Energy
• Timber
• Biomass

Pesticides: Toxic substances released intentionally into our environment to kill living things.

Carcinogens: Substances capable of causing cancer in living tissues.

Fossil Fuel: A general term for buried combustible geologic deposits or organic materials formed from decayed plants and animals that have been converted to crude oil, coal, acid, natural gas, and heavy oils.

Pollution: The introduction of a harmful substance into the environment.

Nonpoint Source Pollution: A type of pollution caused by rainfall or snowmelt that moves over and through the ground.

NONPOINT SOURCE POLLUTION

• Manure
• Pesticides
• Sewage
• Carcinogens
• Oil
• Gas
• Household chemicals

Point Source Pollution: A type of pollution that is localized stationery from a pollution source that doesn't move.

POINT SOURCE POLLUTION

• Discharge pipes from factories
• Roadways
• Underground storage containers that leak