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Edexcel IGCSE Geography 復(fù)習(xí)筆記 1.1.1 The Hydrological Cycle

Category: IGCSE課程, 國際課程, 教材筆記, 福利干貨 Date: 2022年7月22日 下午3:51

Edexcel IGCSE Geography 復(fù)習(xí)筆記 1.1.1 The Hydrological Cycle

Characteristics of the Water Cycle

  • The hydrological cycle is a?closed?system
  • Water is constantly recycled through the system
  • Within the hydrological cycle, there are?stores?and?transfers

 

 

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Exam Tip

Remember there are no inputs and outputs in the hydrological system, only transfers and stores, because it is a closed system.

Stores of the Water Cycle

  • Stores are those places where water is held for a period of time. These include:
    • Water in the?atmosphere?in the form of water vapour or water droplets in clouds
    • Surface stores?such as puddles, lakes, rivers and reservoirs
    • Interception?is how precipitation is prevented from reaching the ground, usually by being caught on leaves or branches
    • Aquifers?are permeable rocks such as limestone and sandstone which can hold water
    • Ice and snow
    • Seas and oceans

Transfers of Water Within the Cycle

  • Transfers are the ways in which water is moved around the hydrological cycle. They include:
    • Evaporation
    • Condensation
    • Transpiration
    • Evapotranspiration
    • Precipitation
    • Overland flow
    • Infiltration
    • Percolation
    • Through flow
    • Groundwater flow

Worked Example

Identify the statement that best defines through flow.? (1)

A Water moving through the soil
B Water taken up by plants from the soil and released into the atmosphere as water vapour
C Movement of water over the ground
D Movement of water through rocks

 

Answer

A (1)?Through flow is the water moving through the soil below the surface and above the water table.

Exam Tip

Try sketching the hydrological cycle from memory. Remember to add a key to show stores and transfers.

轉(zhuǎn)載自savemyexams

 

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