Environmental Problems Ms. Rollins

Pollution What is pollution? pollution – an _____________ change in the __________ that is caused by _________ substances What damage is caused by pollution? ______________ damage to _______ loss of _________ Are all pollutants human-made? ____, some are natural, such as ash from __________ and fires.

Pollution Types of Pollutants _________ – trash, hazardous wastes __________ – fertilizers, pesticides high powered ______ - nuclear wastes, radioactive wastes ________ – CO2, nitrogen These pollutants contribute to the ___________ effect ____________

In the ___________ environment we refer to pollution as being either point-source pollution or nonpoint-source pollution. _____________ pollution – a pollutant which comes from one _____________ source ___________ sewage plant factory __________________– a pollutant which comes from _________ sources farms _________ – changing oil; fertilizing lawn Pollution

Resources ___________ resource - something which can be used over and over. It has an ___________ supply. ______________resource – something which can not be __________or that would take a long time to replace. _______energy ______ energy ______energy geothermal _____________ Minerals ________fuels – oil, coal

Resources Is water a renewable or nonrenewable resource? Are trees a renewable or nonrenewable resource?

Other Issues ________________: ____________: the presence of too many individuals in an area for the __________ resources What causes overpopulation? advances in _________ increased _____ supply loss of _________ ____________: the number and variety of organisms in a given area Why is biodiversity important? Increases the ________ of an ecosystem ________ – how it looks; how we enjoy it Other Issues