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Moss/Rowlands Chapter 6
Humans in the Biosphere
23
Biology
10th Grade
08/23/2014

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Term
Agriculture
Definition
Practice of farming.
Term
Monoculture
Definition
Farming strategy in which large fields are planted with a single crop, year after year.
Term
Green Revolution
Definition
The development of highly productive crop strains and the use of modern agricultural techniques to increase yields of food crops.
Term
Renewable Resources
Definition
Resource that can regenerate quickly and that is replaceable. Ex. Dead tree new tree grows.
Term
Nonrenewable Resources
Definition
Resource that cannot be replenished by natural processes.
Term
Sustainable Development
Definition
Way of using natural resources without depleting them and of providing for human needs without causing long term environmental harm.
Term
Soil Erosion
Definition
Wearing away of surface soil by water and wind.
Term
Desertification
Definition
In areas with dry climates, a process caused by a combination of poor farming practices, overgrazing, and drought that turns productive land into desert.
Term
Deforestation Destruction of forests.
Definition
Term
Aquaculture
Definition
Raising of aquatic animals for human consumption.
Term
Smog
Definition
Mixture of chemicals that occurs as a gray-brown haze in the atmosphere.
Term
Pollutant
Definition
Harmful material that can enter the biosphere through the land, air, or water.
Term
Acid Rain
Definition
Rain containing nitric and sulfuric acids.
Term
Biodiversity
Definition
The sum total of the genetically based variety of all organisms in the biosphere.
Term
Ecosystem Diversity
Definition
Variety of habitats, communities, and ecological processes in the living world.
Term
Species Diversity
Definition
Number of different species in the biosphere.
Term
Genetic Diversity
Definition
Sum total of all the different forms of genetic information carried by all organisms living of Earth today.
Term
Extinction
Definition
Occurs when a species disappears from all of part of its range.
Term
Endangered Species
Definition
Species whose population size is rapidly declining and will become extinct if the trend continues.
Term
Habitat Fragmentation
Definition
Splitting of ecosystems int small fragments.
Term
Biological Magnification
Definition
Increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web.
Term
Invasive Species
Definition
Plants and animals that have migrated to places where they are not native.
Term
Conservation
Definition
Describe the wise management of natural resources, including the preservation of habitats and wildlife.
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