resources and the environment unit 7. answer the following questions in the bellwork section of your...
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Resources and the environment
UNIT 7
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Answer the following questions in the bellwork section of your binder.1. What resources do you need to live?
2. What resources do you need to build a house like this one?
BELLWORK
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You will learn:The types of natural resources
provided by EarthIdentify resources as renewable or
nonrenewableExamine each type of resource.Traditional energy resources such as
fossil fuels, as well as discover alternative energy resources.
LEARNING GOAL
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Natural resources provided by Earth are:Air WaterLandOrganismsRocksMineralsNutrientsGeochemical cycles
EARTH RESOURCES
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Recall that neither matter nor energy can be created or destroyed, but both can be changed.
Natural resources can be transformed:Cycling (carbon, nitrogen and water cycles)
NATURAL RESOURCES
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Renewable
Living things, surface water,
groundwater, fertile soil, air, solar
energy, elements that cycle
Replaced through natural processes at same rate as being
used
Nonrenewable
Fossil fuels (coal and petroleum)Elements (gold, copper, silver)
Exists in fixed amounts – can only
be replaced by geological, physical
or chemical process---takes millions of years
RENEWABLE VS. NONRENEWABLE
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Land resources include:TopsoilRocksMineralsSpace for agricultureHousingRoadwaysWildlife refuges and national parks
LAND RESOURCES
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Air contains substances that all organisms need to survive
nitrogen oxygen carbon dioxide methane ozone
Most important component of air is oxygen 21%
AIR RESOURCES
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Burning of fossil fuels and land releases carbon dioxide into the atmosphere global warming
Other human activities adversely affect the survival and health of the organisms
Air pollution
DISRUPTING EARTH’S CYCLES
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Freshwater is recycled through the water cycle
Water management techniques to ensure a continuing supply
Dams and reservoirs
Transporting surface water
Tapping groundwater
Desalinating seawater
WATER RESOURCES
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Study Guide worksheetSection assessmentsOr chapter assessments
ASSESSMENT