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eco. changes gre5
Question | Answer |
---|---|
POLLUTION | waste products that damage or harm an environment |
ACID RAIN | chemicals in fossil fuels that mix with water vapor in the air |
HABITAT | an area where an organism can find everything it needs to survive |
CONSERVATION | saving something |
RECLAMATION | cleaning and restoring a damaged ecosystem |
SUCCESSION | the gradual change in the kinds of organisms that live in an ecosystem over time |
EXTINCTION | the death of ALL of one kind of organism of a species |
PRIMARY SUCCESSION | begins with a rock and is an extremely slow process because there is no soil yet |
SECONDARY SUCCESSION | rebuilds a damaged ecosystem from fires, volcanoes...... abd us a faster process becasuse there's already soil there |
EXHAUSTIBLE RESOURCES | resources from fossil fuels that take millions of years for form; once they are gone, they are gone FOREVER. Ex- coal, natural gas, oil |
INEXHAUSTIBLE RESOURCES | resources from nature that will be around as long as Earth survives. Ex- water/wind/sun |
3 CAUSES OF SUCCESSION | 1. a change in climate 2. organisms that already live in the ecosystem 3. adding new plants or animals to an ecosystem |