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Definition
| the variety of species in an ecosystem |
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Definition
| an organic community of plants and animals interacting with their environment |
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Definition
| the use of concrete and large artificial structures by civil engineers to defend land against natural erosion processes |
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Term
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Definition
| the movement of loose materials along a coastline by wave action because they break at an oblique angle to shore |
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Term
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Definition
| the rise or fall in the average level of the sea over long periods of time. This acts as a base level for natural erosion |
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Definition
| the general re-shaping of the land by normal atmospheric processes, for example wind and rain. It includes weathering, mass movement and deposition. |
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Term
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Definition
| a rocky, level area at around sea level representing the base of old and now retreated cliffs |
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