Process
Enviornmental Impact
Human Impact
Basic Information
Vocab
100
how water returns to the surface
What is precipitation
100
Cycle(s) that the hydrological cycle influences
What is all?
100
Rain with a low pH level
What is acid rain
100
Another name for the hydrologic cycle
What is water cycle?
100
precipitation flows into water bodies
What is runoff
200
how water moves into the atmosphere
What is evaporation
200
Number of dead zones as estyuaries and along seacoasts worldwide
What is 200?
200
How we increase evaporation
What is damming rivers or creating resevoirs?
200
Percent of all water usable by humans
What is <1%
200
Underground resevoirs
What is aquifers?
300
The state(s) of water in the hydrologic cycle
What is solid, gas, and liquid?
300
How land plants get water
What is uptake from soil water?
300
Spreading water on agricultural fields has what impact
What is depleting rivers, lakes, and streams?
300
Percent of all water inthe oceans
What is 97%
300
An example of precipitation
What is rain or snow?
400
Three ways that water returns to the oceans
What is precipitation, runoff, groundwater
400
______ has increased runoff and erosion and decreased recharge
What is changed vegetation patterns?
400
How we reduce transpiration and lower water tables
What is removing forests and other vegetation?
400
Percent of Earth's water is freshwater used by humans
What is 3%
400
Upper limit of groundwater held in an aquifer
What is water table?
500
Where humans extract water from
What is soil and rivers?
500
The cause of dead zones
What is nutrient runoff from agricultural fertilizers
500
The most threatening human impact on hydrologic cycle
What is overdrawing groundwater?
500
Fraction of freshwater in glaciers, snowfields, and ice caps
What is 2/3?
500
Low concentration of dissolved oxygen in water
What is hypoxia
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