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Definition
| Regional ecosystems defined by biogeography and climatic characters |
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| Natural assets ready for use that can be drawn upon to take care of a need, such as water, wood, coal, and oil. |
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| The reduction of diversity in an ecosystem |
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| The natural process of converting inorganic to organic nutrients |
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| Natural resources that are considered finite in amounts; predicted to become scarce due to their rapid depletion |
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| The scientific study of the relations of living things to one another and to their environment |
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| The study of interactions between people and their environment |
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Term
| ZPG Zero Population Growth |
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Definition
| When the population growth rates equal to or less than zero |
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Definition
| The stabilization of population drift as the economy improves and standard of living increases |
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Definition
| An epidemic extending beyond the confines of a wide area, typically a continent, such as HIV/AIDS; a widespread problem |
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| A chemical agent used to kill plant growth |
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Definition
| Large receptacles for storing water, such as an underground tank |
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Definition
| To make inferior, impure, by adding a harmful, less valuable, or prohibited substance |
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Definition
| A method of destroying disease-producing bacteria by heating the liquid to a prescribed temperature for a specified period of time |
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Definition
| The process of deciding how and to what extent to reduce or eliminate risk factors by considering the risk assessment, engineering factors, social, economic, and political concerns |
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Definition
| The possibility of injury, disease, or death |
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Term
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Definition
| To have an effect; the power of an event to produce |
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Definition
| The starting point, person, place, or things by which something develops; the point by which something begins |
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Definition
| The science of causes or origins of a disease |
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Term
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Definition
| Contact by swallowing, breathing, or direct contact (such as through the skin or eyes). Exposure may be either short term (acute) or long term (chronic) |
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Definition
| The harshness or intensity of an event |
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| The range of extent of an action |
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Term
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Definition
| Concerned with identification and control of factors that affect health |
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