Fact 1: If soil is permeable then water easily flows through that soil.

Fact 2: Permeability is affected by many soil characteristics.

Given the two facts above, answer the question "What is the rate of water flow of soil?" with the following options: 
- salinity
 - variable
 - heat energy
 - reduce
 - streams.
 - streams
 - down
 - evaporation


 

  variable       