The Global Hydrological Cycle Is Of Enormous Importance To Life On Earth Flashcards
What % of earths water is fresh water?
Just 3%
What % of fresh water is accessible to humans?
1%
What % of all of earths water is available to drink?
0.007%
How much water does a 10 minutes shower use?
50 gallons
How many people don’t have access to safe drinking water?
1 in 5 people
How many people lack basic sanitation?
1 in 3 people
According to the UN how often does. Child die form water related diseases?
Every 15 seconds
What is input?
Addition of matter/ energy to a system
What is an output?
Removal or loss of matter/ energy to a system
What is transfer/flows?
A form of linkage between one store/ component and another involving the movement of energy or mass
What is a store/component?
A part of a system where energy/matter is stored or transformed
What is a closed system?
Theses have transfer of energy both into and beyond the system boundary but no transfers of matter
What is an open system?
Where matter and energy can be transferred from the system across the boundary into the surrounding environment
What are the input processes into the hydrological cycle?
Precipitation
What are the outputs of the hydrological cycle?
Evaporation
Transpiration
Evapotranspiration
What are the stores in the hydrological cycle?
Channel storage
Soil moisture storage
Groundwater storage
What are the processes/ flows in the hydro cycle?
Ground water flow Through flow Percolation Infiltration Stem flow Sublimation Condensation Interception
What store contains the most freshwater?
68.7% of freshwater is stored in glaciers & ice caps
What % of freshwater is found in ground water?
30.1%
What % of freshwater is accessible surface water?
1.2%
What is residence time?
Average time a water molecule spends in a store
