Transcript Chapter #19
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 Oil Gasoline Natural 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 energythe 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 “Reef”. March 20, 2008. Work Cited http://content.answers.com/main/content/wp/encommons/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, 2008 http://www.mongabay.com/images/rainforests/deforestation-in-theamazon.jpg “Zebra Mussels”. March 20, 2008. http://fwp.mt.gov/content/2779,200,0.jpg “Deforestation”. March 20, 2008. http://www.blog.thesietch.org/wpcontent/uploads/2007/10/amazon_deforestation.jpg “Alternative Energy”. March 25, 2008. http://www1.istockphoto.com/file_thumbview_approve/4032984/2/ist ockphoto_4032984_alternative_energy.jpg