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CHAPTERS

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natural resources & conservation chapters 5.1, 10.4, 11.4 & 15.4 ... – PowerPoint PPT presentation

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Title: CHAPTERS


1
NATURAL RESOURCES CONSERVATION
  • CHAPTERS
  • 5.1, 10.4, 11.4 15.4

2
E.Q. How can water, soil air be recycled?
  • Standard S6Ej. Describe methods for conserving
    natural resources such as water, soil, and air.

3
NATURAL RESOURCE
  • Natural Resource - Any natural material that is
    used by humans or
  • Resources that the Earth provides for you
  • EX Water, Petroleum, Minerals, Forests

4
RENEWABLE RESOURCES
  • A Natural Resource that can be replaced at the
    same rate at which the resource is used.
  • EX Trees,Wind, Water
  • Although many resources are renewable, they still
    can be used up before they can be renewed.

5
Nonrenewable Resources
  • A resource that forms at a rate that is much
    slower than the rate at which it is consumed.
  • A fossil fuel is a nonrenewable energy resource
    formed from the remains of plants animals that
    lived long ago.
  • EX Coal, Petroleum (Oil), Natural Gas
  • Once theyre gone, theyre gone!!

6
CONSERVING NATURAL RESOURCES
  • To conserve natural resources, you should try to
    use them only when necessary.
  • 3 Rs
  • Reduce
  • Reuse
  • Recycle

7
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
    trees
  • http//www.gly.uga.edu/railsback/CTW/ChinaDeserti
    fication.jpeg

8
HOW CAN SOIL BE CONSERVED?
  • Soil conservation is the management of soil to
    prevent destruction.
  • Contour Plowing
  • Crop Rotation
  • Conservation Plowing
  • Windbreaks
  • Leaving soil fallow

9
Contour Plowing plowing fields along curves of
slopes
10
Conservation Plowingdead weeds and stalks are
left in the ground from year to year
11
Crop Rotationplant different crops in a field
from year to year
12
Windbreaktrees planted along the edge of a field
13
Terracing
  • Prevents erosion from heavy rains on steep hills

14
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

15
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

16
Water Conservation Video
  • http//www.sesamestreet.org/video_player/-/pgpv/vi
    deoplayer/0/3a878aa1-1cff-464d-a0b0-64b204cdce3c/w
    ater_conservation

17
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

18
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

19
Air Pollutants
  • PRIMARY POLLUTANTS
  • Industrial emissions
  • Vehicle Exhaust
  • Volcanic Ash
  • SECONDARY POLLUTANTS
  • The formation of smog

20
SOURCES OF HUMAN-CAUSED POLLUTION
  • Industrial Indoor Air Pollution
  • Acid Precipitation
  • The Ozone Hole

21
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

22
Final Countdown
One way in which something you learned TODAY
relates to something you learned previously
Name an example of a renewable resource.
Name an example of a non-renewable resource.
One Important fact from lesson about Air
One Important fact from lesson about Water
One Important fact from lesson about Soil
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