The Water Cycle: Global Scale Flashcards
1
Q
Global distribution of water
A
97% oceans
2.5% freshwater
1%. Surface water and other freshwater
2
Q
How much of the freshwater is frozen
A
69%— glaciers, icecaps and Ice sheets
30% is groundwater
3
Q
Water can be stored in 4 areas
A
Hydrosphere, Lithosphere, Crysophere and atmosphere
4
Q
Hydrosphere
A
Any liquid water
5
Q
Lithosphere
A
Water stored in the crust and upper mantle
6
Q
Cryosphere
A
Any water that is frozen
7
Q
Atmosphere
A
Water vapour
8
Q
What are aquifers
A
Underground water stores and on a global scale are unevenly distributed
Shallow groundwater aquifers can store water up to 200 years, but deeper fossil aquifers formed during wetter climatic periods, may last for 10,000 years