Chapter 21 Flashcards
Products used on crops to control insects and other pests
Pesticides
Any dirty or harmful substance in the environment
Pollution
Rain that is for more toxic than usual
Acid rain
A yellow-brown haze that forms when sunlight reacts with air pollution
Smog
Shield that protects living things from ultraviolet radiation
Ozone layer
The trapping of heat by carbon dioxide and other gases in the air
Greenhouse effect
A rise in earths temperatures
Global warming
Huge pits where wastes are dumped and buried
Landfills
Human-made liquid or solid wastes that may endanger human health or the environment
Hazardous wastes
A government agency that is committed to protecting the environment
EPA
Broken down easily in the environment
Biodegradable
Substances that cannot be replaced once they are used
Nonrenewable resources
Saving of resources
Conservation
Reducing waste before it occurs
Precycling
What is pollution
Harmful things in the environment
What contributes to air, water, and land pollution
Air: smoke, burning things, and fossil fuels
Water: putting trash in water, putting waste in water
Land: littering, and landfills
Develop ways to reduce contributing to pollution
Turn off lights, don’t litter, clean up after myself
Describe reduce reuse and recycle
Reduce: reduce pollution and polluting
Reuse: use things more than once
Recycle: make things into other things and reuse stuff
Explain actions and individuals can take to protect the environment
Clean up, don’t litter, reduce pollution, reuse, and recycle
Identify non renewable resources
Coal, oil, and natural gas
