variety of all living things; the different plants, animals and micro organisms, the genetic information they contain and the ecosystems

the concentration of toxins in an organism as a result of its ingesting other plants or animals in which the toxins are more widely disbursed

inorganic nutrient enrichment of natural waters, leading to an increased production of algae and macrophytes.

elimination of a species/plant

a fuel (such as coal, oil, or natural gas) formed in the earth from plant or animal remains.

when parts of a habitat are destroyed, leaving behind smaller unconnected areas

occurs when harvesting exceeds reproduction of wild plant and animal species

an organism that is not indigenous, or native, to a particular area.

organisms that do not occur naturally in an area, but are introduced as the result of deliberate or accidental human activities

when species vanish much faster than they are replaced.

the introduction of harmful materials into the environment.

a non-native organism : growing and dispersing easily usually to the detriment of native species and ecosystems

meeting our own needs without compromising the ability of future generations to meet their own needs

the use of living organisms, such as microbes and bacteria, to remove contaminants, pollutants, and toxins from soil and water