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Enviromental Science - Req #2

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Across
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Species that are declining in numbers at such a rate that they will become endangered if nothing happens to change the situation.
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the zone of Earth that contains and supports living things.
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An abandoned piece of commercial or industrial land that is contaminated by a hazardous substance.
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An area that, due to geography, weather patterns, and climate, shares the same air.
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Converserving resources
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the role of a species in a community
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What uses a small gasoline powered engine and an electric motor with a special battery.
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Species interaction in which two kinds of organisms live together, but do not feed upon each other
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Vehicles powered by a _______ operate on electricity produced through a chemical reaction.
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When waste products build up faster than they can be broken down, they become?
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Populations of all species living and interacting in a given area
Down
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The natural home or place of which an organism lives
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Species that are declining in numbers at such a rate that they will become endangered if nothing happens to change the situation
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All the individuals of a given species have died
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Pollutants such as fertilizers and pesticides that enter our water system from run off our called______ because the sources of pollution cannot be traced to a single identifiable point.
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Group of individual organisms of the same species living in a particular area
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What is a region draining into a river, river system or other body water.
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Sensible and careful use of natural resources by humans
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A gas called _____ forms in the stratospher when oxygen interacts with lightning and ultraviolet radiation from the sun.
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Populations of all species living and interacting in a given area