Envoirmental Science Final On 6/15/2011 And Its The Last Final

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Envoirmental Science

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The study of air, water, and land surrounding an organism or a community, which ranges from a small area to Earth’s entire biosphere; it includes the study of the impact of humans on the envoirment.

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Ecology

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The study of the interactions of living organisms with one anther to another envoirment.

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Natrual resource

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Any natural materil that is used by humans such as water petroleum minerals forests and animals

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Pollution

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An undiserable change in the natural envoirment that is caused by the introduction of substances that are harmful to living organisms or by excessive wastes, heat, noise

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Biodiveristy

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The variety of organisms in a given area the genetic variation within a population the variety of speices in a community or the variety of the communites in an ecosystem.

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ecological footprint

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A calculation that shows the productive area of earth needed to support one person in a particular country

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sustainbility

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The condition in which human needs are met in such a way that a human population can survive indefintily

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observatiton

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The process of obtaining information by using the senses the information obtained by using the senses.

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hypothesis

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An educated guess

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prediction

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A statement made in advance that expresses the results that will be obtained by testing a hypothesis if it is supported the expected outcome if a hypothesis is accurate

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Expirement

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A procedure that is carried out under controlled condtioions to discover demonstrate, or test a fact theory or general truth.

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radiation

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The engery that is transferred as electromagnetic waves such as visible light and infrared waves.

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Ozone

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a gas molecule that is made up of three oxygen atoms.

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Corrleation

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The linear depdenance between two variables.

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Greenhouse Gas

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The warming of the surface and lower atmosphere of Earth that occurs when carbon dioxide water vapor and other gases in the air absorb and reradiate infarred radiation.

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BIosphere

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The part of earth where life exists.

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ecosystem

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A community of organisms and their aboitc envoirment

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Biotic

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living things

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abiotic

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non living

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Organism

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A living thing anything that can carry out life processes indepentendly.

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Spieces

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A group of organisms that are closely related and can mate to produce fertile offspring also the level of classification below genus and above sub-spieces.

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POpulation

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A group of organisms of the same species that live in a specific geographical area and interbreed.

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Community

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A group of various species that live in the same habitat and interact with each other.

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Habitat

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The place where an organism usally lives

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Natural slection

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The process by which indiviuals that are better adapted to their envoirment survive and reproduce more successfully then less well adapted indiviuals do a theory to explain the mechnisam of evolution.

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evolution

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a heribate change in the charctheritcs within a population from one generation to the next the devolpment of new types of organisms from pretexting types of organsims over time.

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adaption

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The process of becoming adapted to an environment an anatomical phyciological or behavior change that improves a populations ability to survive.

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Artifical slection

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The selective breeding of organisms (by humans) for specific desirable charcteristics.

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Recistince

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resistance in biology the ability of an organism to tolerate a chemical or diesease-causing agent.

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photosynthesis

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Energy from the sun enteres an ecosystem when a plant uses sunlight to make sugar molecules.

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Producer

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Producer An organism that cfan make organic molecules from inorganic molecules; a photosynthetic or chemosynthetic autotroph that servevs as the basic food source in an ecosystem.

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Consumer

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an organism that eats other organisms or organic matter instead of producing its own nutrients from inorganic services.

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Food chain

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The pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms

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Food web

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A diagram that shows the feeding relationships between organisms in an ecosystem.

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Biome

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Biome large region characterized by a specific type of climate and certain types of plant and animal communites.

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Climate

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The average weather condtions in an area over a long period of time.

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Life expentncy

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The average length of time that an individual is expected to live.

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Infastructure

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The basic facilities of a country or region such as roads bridges and sewers

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Urbaninzation

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An increae in the ratio or density of people living in urban areas rather than in rural areas

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Biodiversity

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The variety of organisms in a given area the genetic variation within a population the variety of speices in a community or the variety of the communites in an ecosystem.

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Endragered spieces

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A speices that has been indefed to be in danger of extectiion throughout all or a significant part of its range and that is thus under protecetetion by regulations or conservation measures.

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Threatnted spices

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A spieces that has been indentified to be likely to become endarged in the forseeablle future

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poaching

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The illegal harvesting of fish, game or other spieces.

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AIr pollution

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44 Air pollution The contamintation of the atmosphere by the introduction of pollutants from human and natural sources.

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Primary pollutatnt

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A pollutant that is put directly into the atmosphere by human or natural activity.

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secondary pollutant

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a pollutant that forms in the atmosphere by chemical reaction with primary air pollutatns, natural componenets in the air or both.

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smog

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urban air pollution composed of a mixture of smog and fog produced from industriall pollutants and burning fuels.

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acid perciptation

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Perciptation such as rain, sleet or snow that contains a high concentration of acids often because of the pollution of the atmosphere.

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Greenhouse gases

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a gas composed of molecules that absorb and radiate infareed radiation from the sun.G

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Global warming

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A gradual increase in the average global
tempature.