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Enviromental Science - Req #2

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