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NATURAL RESOURCES & CONSERVATION
E.Q. – How can water, soil & air be recycled?
Standard S6Ej. Describe methods for conserving natural resources such as water, soil, and air.
NATURAL RESOURCENatural Resource - Any natural material
that is used by humans orResources that the Earth provides for you
EX: Water, Petroleum, Minerals, Forests
CONSERVING NATURAL RESOURCESTo conserve natural resources, you should
try to use them only when necessary.
3 R’sReduceReuseRecycle
SOIL POLLUTIONHow can soil be lost or damaged?
Exhausted – lose fertility because crops planted year after year.
Polluted – mining, chemical spills, HUMANS
Erosion – wind, water
Desertification – once wet area, undergoes drought conditions OR grazing animals OR cutting treeshttp://www.gly.uga.edu/railsback/CTW/ChinaDesertification.jpeg
HOW CAN SOIL BE CONSERVED?
Soil conservation is the management of soil to prevent destruction.
Contour Plowing Crop RotationConservation PlowingWindbreaksLeaving soil fallow
Contour Plowing plowing fields along curves of slopes
Conservation Plowingdead weeds and stalks are left in the ground from year to year
Crop Rotationplant different crops in a field from year to year
Windbreaktrees planted along the edge of a field
TerracingPrevents erosion from heavy rains on steep
hills
WATER POLLUTIONHow can water be lost or cause damage?Point-Source Pollution- pollution that comes
from one specific site. EX: leak from a sewer pipe
WATER POLLUTIONHow can water be lost or cause damage?Nonpoint-source Pollution – Pollution that
comes from many sources; Reaches bodies of water as runoff
EX: street gutters, fertilizers, eroded soil, drainage from mines
Water Conservation Videohttp://www.sesamestreet.org/video_player/-
/pgpv/videoplayer/0/3a878aa1-1cff-464d-a0b0-64b204cdce3c/water_conservation
How can Water be conserved?By using only the water needed
By recycling water
By using drip irrigation systems.
Waste water can be treated by sewage treatment plants and septic systems
Air PollutionHow can Air cause damage or loss?Air Pollution - The contamination of the
atmosphere by the introduction of pollutants from human and natural sources
Air PollutantsPRIMARY POLLUTANTSIndustrial emissionsVehicle ExhaustVolcanic Ash
SECONDARY POLLUTANTSThe formation of smog
SOURCES OF HUMAN-CAUSED POLLUTIONIndustrial & Indoor Air PollutionAcid PrecipitationThe Ozone Hole
How Can Air Be Conserved?By legislation, such as the Clean Air Act
By Technology such as scrubbers - devices used to remove pollutants before they are released by smokestacks
By changes in Lifestyle
Final Countdown
One Important fact from lesson about Air
One Important fact from lesson about Water
One Important fact from lesson about Soil
Name an example of a renewable resource.
Name an example of a non-renewable resource.
One way in which something you learned TODAY relates to something you learned previously