what do you understand by in flow run off system
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The size of the nitrogen atom is quite small and the length of the bond is therefore very short (109.8 pm). ... As a result the energy of the bond dissociation is very high at room temperature (946Kj / mol).
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Runoff is the part of the water cycle in which the water flows over the land as surface water rather than be absorbed into groundwater or evaporating. ... Factors that affect runoff include the amount of rainfall, permeability, vegetation and the slope of the land.
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