Chapter #19

Using Natural Resources

Chapter 19.1 Notes

• Ecosystem all of the living and nonliving things in a certain place. (Forest)

• Community- (Living things) all of the animals and plants living in one area within an ecosystem.

• Population- one specific type of living thing. (Maple Trees)

• Succession is the gradual repopulation of a community by different species over a period of time.

Changes to ecosystem by humans can be positive or negative.

• The deforestation of the rain forest

• Building Dams

• Bringing to the US new plants and animals

Chapter 19.2• Fossil fuels- are any fuels formed from the

remains of ancient plant and animal life• Nonrenewable resources- any resources

that are used faster than they can be replaced. Estimated that gas will run out in 2045, oil 2055, coal 2295.

Coal OilGasolineNatural gas

• Renewable resources- any resources that can be continually replaced.

• Sun

• Wind

• Water

• Geothermal

Alternative Energy Sources

Solar

Windmills

Water in Dams

Nuclear Energy

Geothermal energy- the energy drawn from heated water within Earth’s crust.

Chapter 19.3 Notes

• Pollution- the contamination of the air, water, or soil (land).

• Global warming- an increase in earth’s temperature due to an increase in greenhouse gases

• Eutrophication- an increase in the amount of nutrients, such as nitrates, in the environment

• Recycling- the process of breaking down discarded material for reuse in other products

Work Cited“Reef”. March 20, 2008.

http://content.answers.com/main/content/wp/en-commons/3/32/Nwhi_-_French_Frigate_Shoals_reef_-_many_fish.jpg

“Ecosystem-Population”. March 20, 2008. http://www.nature.com/nrg/journal/v7/n7/images/nrg1877-i1.jpg

“Succession”. March 20, 2008. http://www.physicalgeography.net/fundamentals/images/succession.gif

“Deforestation Pie Graph”. March 20, 2008http://www.mongabay.com/images/rainforests/deforestation-in-the-amazon.jpg“Zebra Mussels”. March 20, 2008.

http://fwp.mt.gov/content/2779,200,0.jpg“Deforestation”. March 20, 2008. http://www.blog.thesietch.org/wp-

content/uploads/2007/10/amazon_deforestation.jpg“Alternative Energy”. March 25, 2008.

http://www1.istockphoto.com/file_thumbview_approve/4032984/2/istockphoto_4032984_alternative_energy.jpg