Water cycle

• What is the term used to describe the continuous movement of water within the Earth and atmosphere?

  Water cycle
• What does water insecurity refer to?

  It refers to the lack of reliable access to sufficient water for health, livelihoods, and production.
• What are the main water stores in the water cycle?

  • Land-vegetation
  • Rivers
  • Sea
  • Clouds
  • Lakes
  • Groundwater
• What are the main water flows in the water cycle?

  • Transpiration
  • Condensation
  • Precipitation
  • Percolation
  • Infiltration
  • evaporation
  • Waterfalls
• What does it mean that the water cycle is a closed system?

  It means that it cannot gain any more water from external inputs.
• Why is the water cycle described as finite and non-renewable?

  Because it has a limited amount of water that is not replenished from external sources.
• What is fossil water?

  Water that has been dormant for over 10,000 years.
• What is residence time in the context of the water cycle?

  It refers to the amount of time water stays in different stores.
• What is the global water budget?

  It describes how water moves around different stores in the Earth system.
• What is the cryosphere?

  It is the frozen water part underneath the Earth system.
• What is an aquifer?

  An area of water underneath the ground that is trapped over impermeable rock.
• What are the factors affecting Hydrographs

  • size of drainage basin
  • Drainage density
  • Relief
  • Permeability of rocks
  • Vegetation
  • Land use
  • Shape of drainage basin