Presentation on theme: "Environmental Science Chapter 14 Test"— Presentation transcript:
1 Environmental Science Chapter 14 Test Deforestation – area where land/ecosystems are protected from exploitationEcosystem services – resources provided by natural or artificial ecosystemsGeographic Information System – land-use toolInfrastructure – roads, schools, power lines etc.
2 Environmental Science Chapter 14 Test Overgrazing – excessive use of a grazing areaSelective cutting – certain trees removed onlyUrban area – 2500 people or more (most Americans live here)Urban crisis – rapid growth, cities cannot provide service for all citizensUrban sprawl – rapid expansion into countrysideWilderness area – land/ecosystems protected from exploitation
3 Environmental Science Chapter 14 Test An example of land used as a protected area to preserve the scenery and ecosystems is the Grand Canyon.National Farmland Protection Program - protect farmland from being developed.Cutting only mature or medium-sized trees allows forests to recover from tree harvesting.Range improvement – eliminate invasive plants and replace with native plants.
4 Environmental Science Chapter 14 Test Rural areas - produce the resourcesHeat islands produce increased precipititationOpen spaces in cities-lower summer temperatures-absorb carbon dioxide-filter pollutants from air and water
5 Environmental Science Chapter 14 Test Inadequate urban infrastructures-traffic jams, substandard housingClear-cutting of forests-advantages – less expensive than selective-disadvantages – destroys habitats, soil erosion
6 Environmental Science Chapter 14 Test Rangeland-well managed = limited grazing animals= watering areas provided= native plants growing-poorly managed = overgrazed, too many animals= grass killed, land becomes bare= erosion occurs= nonnative plants move in= can no longer support grazing
7 Environmental Science Chapter 14 Test Essay – Answer all 3 parts!Consider the statement “National Parks should be closed to motor vehicles.” List both the advantages and disadvantages of this plan. Then give your own opinion – would you support the banning of motor vehicles from National Parks?