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Definition
non-renewable petroleum, natural gas, and coal created by geologic forces from organic wastes and dead bodies of formerly living biological organisms. |
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name the types of fuel in order |
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Definition
wood coal crude oil natural gas |
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Term
what are the 3 seral stages and what makes the differences between them? |
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Definition
pioneer stage intermediate stage climax community stage
water and temperature make the differences |
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Definition
grasses, shrubs, shade tolerant trees (pines) |
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Definition
the plants, lichens, and microbes that first colonize the site. |
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Definition
shade tolerant trees (maples) |
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Definition
known deposits that can be extracted but only under certain economic conditions. (only profitable when the price goes up) |
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Definition
naturally occurring substance that can be extracted using available technology |
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Definition
an area where no biotic community previously existed |
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Definition
all living things are gone and new living things need to repopulate |
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Definition
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Definition
energy drawn from the internal heat of the earth, either through geysers, fumaroles, hot springs, or other natural geotherm features or through deep wells that pump heated ground water. |
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Term
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Definition
an energy conversion device that captures solar energy and directly converts it to electrical current. |
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Definition
involves splitting the core of an atom |
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Definition
areas with similar climate, topography, soil conditions and communities |
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Term
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Definition
near the equator lots of rainfall hot year round |
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Term
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Definition
deciduous; drops leaves in winter (to hold in moisture) |
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Definition
bays where rivers empty into the sea |
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Definition
salt tolerant trees that grow along warm coasts. they help stabilize shorelines |
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Term
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Definition
are flooded at high tide but retain some water at low tide |
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Term
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Definition
saturated wetlands composed of deep layers of undecayed vegetation |
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Term
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Definition
dominated by grass and plants good soils |
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Term
pros and cons of burning natural gas |
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Definition
pros; burns very clean
cons; not easy to capture and transport |
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Term
pros and cons of burning crude oil |
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Definition
pros; burns cleaner than coal, easier to transport
cons; not many resources |
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Term
pros and cons of burning coal |
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Definition
cons; lots of pollution, black lung disease
pros; significant resources |
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Term
pros and cons of burning wood |
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Definition
cons; pollution, overharvesting
pros; renewable |
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Term
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Definition
minerals, fossil fuels, and other materials present in essentially fixed amounts (within human time scales) in our environment |
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Definition
resources normally replaced or replenished by natural processes |
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Definition
the use of normal materials or absorptive structures without moving parts to gather and hold heat |
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Term
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Definition
mechanical systems that use moving substances to collect and transfer solar energy |
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Term
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Definition
organic material from decaying plants. major source of plant nutrients |
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Definition
only plowing immediately before planting |
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Term
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Definition
only tilling wide enough to insert seeds |
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Definition
not tilling before planting |
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Definition
need lots of transportation, planting a single species, lacking biodiversity. not labor intensive (is machine labored) |
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Definition
smaller gardens with a variety of plants. more people labor, not machine labored. |
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Term
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Definition
dramatically increased agricultural production. requires high inputs of water, plant nutrients, and pesticides. (used to keep the pace with growing human populations) |
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Definition
converting once fertile land to desert |
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Term
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Definition
close physical interaction between 2 individuals of different species |
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Term
what are the 3 types of symbiosis and what do they mean? |
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Definition
parasitism- living on or in another organism and causes harm
commensalism- one organism may benefit, but no harm is caused
mutualism- both species benefit from the relationship |
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