WATER CYCLE

a brief overview of water cycle and the impact humans has on it.

1. WATER CYCLE

2. PROCESSES EVAPORATION TRANSPIRATION CONDENSATION  PRECIPITATION RUNOFF

3. EVAPORATION

4. TRANSPIRATION

5. CONDENSATION 

6. PRECIPITATION This Photo by Unknown author is licensed under CC BY .

7. RUNOFF Runoff, describes a variety of ways liquid water moves across land. Snowmelt, for example, is an important type of runoff produced as snow or glaciers melt and form streams or pools.

8. WATER CYCLE AND CLIMATE

9. HUMAN IMPACT ON THE WATER CYCLE

10. DEFORESTATION INCREASED Runoff  , As runoff increases,  infiltration , or the absorption of water back into the soil, decreases. This also prevents the replenishing of groundwater.  •Clear-cutting forests reduces the amount of water plants return to the atmosphere by transpiration. 

11. URBANISATION RAPID SURFACE RUNOFF LIMITED INFILTRATION REDUCED GROUND WATER RECHARGE •

12. AGRICULTURE •Use of toxic chemicals in agriculture and manufacturing and runoff from chemical fertilizers and pesticides can pollute surface water or seep into the ground to contaminate groundwater

13. RESTORING THE WATER CYCLE