Water & Carbon Cycles 1 A Level Geography AQA

What is an input to a system?

• A part of a system where matter is stored

• A set of interrelated components

• The addition of matter

• A form of linkage between stores

What is a closed system?

• These have transfers of energy but not matter across the system boundary

• These have transfers of both energy and matter across the system boundary

• These have no interactions with anything outside the system boundary. There is no input or output of energy or matter

What is positive feedback?

• Where the effects of an action are amplified or multiplied by subsequent knock-on or secondary effects

• Where the effects of an action are nullified by its subsequent knock-on effects

What is cryospheric water

• Water found in the atmosphere

• Water found in the soil and as groundwater

• Water locked up as ice

• Water in the oceans and seas

Terrestrial water falls into four broad classes: surface water, groundwater, soil water and?

(a)  

What is the process when solid water (ice) changes state into water vapour (gas)?

• Condensation

• Sublimation

• Evaporation

• Deposition

What is this?

• Overland flow

• Stemflow

• Throughflow

• Groundwater flow

What is potential evapotranspiration?

• The amount of water that leaves the drainage basin as channel flow

• The annual pattern of discharge in a river

• The amount of water that is evaporated or transpired (or both) from an area

• The amount of water that could be evaporated or transpired (or both) from an area if there was sufficient water available

What does this graph show?

• Hill slope drainage system

• Soil water budget

• Phases of water and phase changes

• Climate

What is happening in the pink section of this graph?

• Utilisation

• Soil water surplus

• Deficit of soil water

• Soil water recharge