an ecosystem on a global scale. put together, the world's biomes make up the biosphere - all living things on Earth
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biotic
the living parts of an ecosystem
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canopy
trees which form a continuous cover of leaves, blocking out much of the light and shading the area beneath the canopy
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ecosystem
a community of plants and animals that interact with each other and their physical environment
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eutrophication
when too many nutrients get into rivers and water bodies {e.g. lakes}, causing extensive plant growth which absorbs oxygen and damages other organisms in the water
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exploitation
the way in which people make use of resources from the Earth
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growing seasons
the amount of time in a year where temperature and precipitation levels are right for local plant species to grow
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litter
leaves, twigs and other dead organic material that falls onto the surface of the soil
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monoculture
when just one spices of a crop or tree is grown
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non-native
a spices that has been introduced from outside the country or ecosystem
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nutrients
substances that enable plants and animals to grow
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open - cast
type of mining that extracts resources from open quarries rather than digging tunnels underground to reach mineral deposits
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precipitation
water vapour condensed in the atmosphere which falls as rain, snow, sleet or hail
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