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1
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a concrete section through which water can escape from dam
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2
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the controlled application of water to arable lands to supply crop water requirements not satisfied by rainfall
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4
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one million litres
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5
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describes the region around a river where it meets the sea
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7
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to protect, preserve, and/or to prevent things from happening to water
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8
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water with a high level of salt
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12
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winding curve or bend of a river or road
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14
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North south
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15
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area that drains or contributes water to a particular point stream river lake or ocean
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16
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A natural stream of water of considerable volume larger than a brook or creek
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18
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Land consisting of marshes or swamps saturated land
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19
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a barrier constructed to hold back water and raise its level
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