Which is true of human impacts to the global water cycle?

+2 votes

 

  

Use of water from rivers for irrigation effectively replenishes groundwater supplies by percolation.

  

Asphalt and pavement increase the amount of groundwater by inhibiting evaporation.

  

Croplands aid in water conservation due to their more extensive root systems compared to plants in natural habitats.

  

The water table is dropping on every continent.

 

asked Jan 3, 2013 in Biology by anonymous
    

1 Answer

+1 vote

 

The water table is dropping on every continent.

 

answered Jan 3, 2013 by CaptainTeemo ~Expert~ (631 points)



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