Earth Science Midterm Study Guide Ch. 1-4 – Flashcards

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geology
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Study of Earth
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oceanography
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Study of Earth's oceans
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meteorology
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science dealing with the atmosphere and weather
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astronomy
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Study of the universe
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crust
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Earth's outermost layer.
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mantle
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the layer of the earth between the crust and the core
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inner core
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..., A dense sphere of solid iron and nickel at the center of Earth
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asthenosphere
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..., A subdivision of the mantle situated below the lithosphere. This zone of weak material exists below a depth of about 100 kilometers and in some regions extends as deep as 700 kilometers. The rock within this zone is easily deformed.
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lithosphere
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..., A rigid layer made up of the uppermost part of the mantle and the crust.
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parallels
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=latitude
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meridians
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=longitude
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degrees
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..., a unit for measuring angles
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minutes
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..., MINUTES
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seconds
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..., SI unit for time
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mercator
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..., A map projection that fairly accurately shows shape and direction, but distorts distance and size of land masses.
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gnomonic
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..., Projects points from a globe onto a piece of paper that touches a globe at a point
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conic
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..., Map that is highly accurate for small areas, made by projecting points and lines from a globe onto a cone.
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ploy conic
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...
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contour lines
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..., lines that connect points of equal elevation
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contour intervals
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..., The difference in elevation from one contour line to the next.
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contour index
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..., The heaviest contour line indicating elevation
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scale
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...
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legend
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..., A key that identifies each of the data series in a chart.
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hypothesis
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..., A testable prediction, often implied by a theory
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theory
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..., A hypothesis that has been tested with a significant amount of data
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scientific method
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..., A series of steps followed to solve problems including collecting data, formulating a hypothesis, testing the hypothesis, and stating conclusions
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hydrosphere
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..., All the water at and near the surface of the earth, 97% of which is in oceans
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geosphere
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..., the solid part of the earth consisting of the crust and outer mantle
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atmosphere
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..., Layers of air surrounding the earth.
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biosphere
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..., Consists of all life on Earth and all parts of the Earth in which life exists, including land, water, and the atmosphere.
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convergent
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...a boundary where the plates are moving CLOSER to each other
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divergent
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..., A boundary where the plates are moving AWAY from each other.
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transform
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...
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constructive force
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..., a force that builds up mountains and landmasses on Earth's surface
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destructive force
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..., A force that slowly wears away mountains and other features on the surface of Earth.
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sources of energy
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..., fossil fuel, nuclear, wind, hydroelectric, geothermal, biomass, solar, hydrogen, coal, oil
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resources
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..., A source or supply or support
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population
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A group of organisms of the same species populating a given area
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pollution
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..., Addition of more waste than a resource can accommodate.
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atoms
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..., Building blocks of matter
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elements
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..., A molecule composed of one kind of atom; cannot be broken into simpler units by chemical reactions.
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ions
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..., Atoms that gain or lose electrons
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periodic table
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..., A chart of the elements showing the repeating pattern of their properties
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isotopes
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..., Atoms of the same element that have different numbers of neutrons.
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compounds
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..., 2 or more elements chemically combined
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ionic
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..., Formed when one or more electrons are transferred from one atom to another
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covalent
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..., A chemical bond that involves sharing a pair of electrons between atoms in a molecule
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metallic
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..., A bond formed by the attraction between positively charged metal ions and the electrons around them
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magma
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..., A molten mixture of rock-forming substances, gases, and water from the mantle
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precipitation
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..., Any form of water that falls from clouds and reaches Earth's surface.
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pressure
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..., Force per unit area.
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temperature
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..., A measure of how hot or cold something is.
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hydrothermal
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..., an area where ocean water sinks through cracks in the ocean floor, is heated by the underlying magma, and rises again through the cracks
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silicates
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..., Contain silicon and oxygen
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carbonates
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..., A group of minerals. Most common after silicates that contains carbon.
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oxides
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Compounds that contain oxygen and an element other than silicon
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sulfides
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A group of minerals. Contains sulfur.
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halides
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A binary compound of a halogen with another element or group.
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native elements
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A mineral that is composed of only one element.
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outer core
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A layer of molten iron and nickel that surrounds the inner core of Earth
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stages of coal
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Peat, lignite, bituminous, anthracite
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coal
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(n.) a combination, union, or merger for some specific purpose
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petroleum
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a dark oil consisting mainly of hydrocarbons
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natural gas
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A fossil fuel in the gaseous state
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tar sands
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rock or sand layers that contain oil
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oil shale
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a soft, fine-grained sedimentary rock from which oil and natural gas are obtained.
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mineral resources
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inorganic substances that were formed by earth's geological processes; oil, natural gas, salt, sulphur and lignite
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igneous processes
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produce deposits of metallic minerals, magma cools, heavy minerals crystallize and sink to bottom
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hydrothermal solutions
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the hot, watery solution that escapes from a mass of magma during the later stages of crystallization
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placer deposits
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concentration of metals in areas where water is less turbulent or slower-moving
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industrial minerals
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aggregate, marble, limestone, clay,
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building materials
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(wood, brick, stone, wattle, grass & brush) houses and buildings are typically built from materials that are abundant in the area.
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point source pollution
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Pollutants discharged from a single identifiable location: factory pipes, leaking land fill or storage tank
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non-point source pollution
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water pollution that does not have a specific point of origin: waste from streets,construction sites or pesticides off farm fields and lawns
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runoff
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water that flows over the ground surface rather than soaking into the ground
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pollution in the air
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coal or oil burning power plant, carbon monoxide, nitrogen oxide, soot, smog, sulfur dioxides, nitrogen oxides creates acid rain
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global warming
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PRODUCED BY INCREASING OF GREENHOUSE GASES (CARBON DIOXIDE, METHANE & OZONE) IN THE ATMOSPHERE.
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Chlorofluorocarbons CFC's
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An organic compound that contains carbon, chlorine, and fluorine. Also discussed in this topic are the hydrochlorofluorocarbons (HCFCs), which contain hydrogen in addition to carbon, chlorine, and fluorine.
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damage to land
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soil erosion, mining, agriculture, deforestation, and waste disposal.
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mining
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Extracting ore or minerals from the ground
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irrigation
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A way of supplying water to an area of land that does not have a lot of water
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deforestation
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Destruction of forest; cutting down trees results in loss of top soil
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disposal sites
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sanitary landfills
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solar energy
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Energy from the sun that is converted into thermal or electrical energy. - advantages:the "Fuel" is free, non-polluting -drawbacks: equipment and installation is vary expensive, supplement heating unit is needed for cloudy days, fragile equipment
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nuclear energy
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Energy stored in the nucleus of an atom
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nuclear fission
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A nuclear reaction in which a massive nucleus splits into smaller nuclei with the simultaneous release of energy
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wind turbines
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rotating machine that converts kinetic energy of wind into mechanical energy
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hydroelectric power
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Electricity generated by flowing water: Hover Dam, Niagara Falls
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geothermal energy
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Energy derived from the heat in the interior of the earth, Energy from steam or hot water produced from hot or molten underground rocks: harnessed by tapping natural underground reservoirs of steam and hot water
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tidal power
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Electricity generated by the movement of sea water caused by the tides
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conservation
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Careful use of Earth's resources.
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clean air act
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1970s congress passed the Clean Air Act, nation's most important air pollution law: 6 "criteria' pollutants known to cause health problems - carbon monoxide, ozone, lead, sulfur dioxide, nitrogen oxides, and fine particles
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clean water act
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1972 congress passed the Clean Water Act this limited points source pollutin
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compost
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a mixture of decaying vegetation and manure
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recycling
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Convert waste into reusable material.
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