With many ecosystems based on climate and elevation.
A place where all biotic and abiotic factors are interacting.
An object that is not, never was and never could be living or part of a living thing.
Anything that is or was living or was part of a living thing.
A living thing.
A group of different organisms that interact with eachother.
Food Chain, Trophic Levels, Producer, Primary Consumer, Secondary Consumer, Tertiary Consumer, Decomposer
Population, Biodiversity, Genetic Biodiversity, Species Biodiversity, Hot Spot, Endangered Species, Threatened Species, Ecosystem Biodiversity, Indicator Species
A process in which the communities of an ecosystem change over time.
Occurs in places where an ecosystem has never existed. Ex.: a newly formed island
The process that begins in an ecosystem when something has destroyed or disturbed the natural ecosystem. Ex.: A natural disaster
Factors that prevent a species from reaching its carrying capacity.
The maximum amount of a species that an environment can support.
How quickly a specie's population grows.
Pollution that can be traced back to a source and is dumped directly into a body of water. Ex. factories, sewers, oil-leaking boats
Pollution that is difficult to trace the source of and is washed into a body of water. Ex. Motor oil, soda cans, cigarette butts, fertilizers, dog waste.
A pollutant that occurs and is found in nature.
A pollutant added to the environment by man, often the result of urbanization.
The physical growth of urban areas.
a source of supply, support, or aid, esp. one that can be readily drawn upon when needed.
Materials or things that people use from the Earth
Any material/energy source that can not be replaced within a human lifespan. Ex: gold, fossil fuels, coal, rocks/minerals, nuclear energy, uranium
Any material/energy source that circles or can be replaced within a human lifespan Ex:wind, trees, air, water, solar power, animals
An underground layer of a permeable surface that stores water.
The removal of salt/chemicals from water. Can occur through: evaporation, freezing, reverse osmosis
The process of removing undesirable contaminants from water.
A region drained by, or one that contributes to, a stream, lake, okr other body of water. (there are 104 in Pennsylvania)
A surface that does not allow any type of fluid/water to pass through. Ex: pavement, cement