Hydrological Cycle- Terms

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1. What's throughfall?

  • The vertical movement of water from the ground surface to the soil.
  • The lateral movement of water through the soils to streams and rivers.
  • Precipitation, initially intercepted by the leaves, stems and branches of vegetation, which drips to the ground.
  • Moisture in the form of rain, drizzle etc., which falls from clouds.
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2. What's the vertical movement of water, under the pull of gravity, from the ground surface into the soil?

  • Infiltration
  • Throughflow
  • Percolation
  • Throughfall

3. What's percolation?

  • The lateral movement of groundwater through permeable rocks.
  • The vertical movement of water, under the pull of gravity, from the ground surface into the soil.
  • The vertical movement of water, under the pull of gravity, from the soil into permeable rock.
  • The lateral movement of water through the soil to streams and rivers.

4. What's transpiration?

  • The movement of water across the ground surface as thin film or sheet.
  • The phase change of water from liquid to gas.
  • The evaporation of moisture produced by the pores of plants, from vegetation surfaces.
  • The movement of water across the ground surface in gullies, streams and rivers.

5. What's groundwater flow?

  • The lateral movement of water through soil to streams and rivers/
  • The lateral movement of groundwater through permeable rocks. Groundwater eventually reaches the surface.
  • The movement of water across the ground surface in gullies, streams or rivers.
  • The movement of water across the ground surface as a thin film or sheet.

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