1. Alejandra Clasing Ruby Sedas
THE WATER CYCLE
Alejandra Clasing Ruby Sedas

2. 5 steps of the water cycle:

3. 5 steps of the water cycle:
1. Evaporation

4. 5 steps of the water cycle:
2. Condensation

5. 5 steps of the water cycle:
3. Precipitation

6. 5 steps of the water cycle:
4. Runoff
5.Infiltration

7. 5 steps of the water cycle:

9. Average residence time
Reservoirs:
Reservoir
Average residence time
Oceans
3,200 years
Glaciers
20 to 100 years
Seasonal snow cover
2 to 6 months
Soil moisture
1 to 2 months
Groundwater: shallow
100 to 200 years
Groundwater: deep
10,000 years
Lakes
50 to 100 years
Rivers
Atmosphere
9 days

10. Human activities that affect the water cycle:
-Agriculture
-Alteration of the chemical composition of the atmosphere
-Construction of dams
-Deforestation and afforestation
-Removal of groundwater from wells
-Water abstraction from rivers
-Urbanization