The likelihood of polluting groundwater with pesticides and plant ...

[natalie2426]

The likelihood of polluting groundwater with pesticides and plant nutrients is enhanced by:
 
  A) light tillage of the upper centimeter or so of soil.
  B) the presence of macropores in the soil.
  C) conventional tillage as a choice compared with conservation tillage.
  D) the use of tillage to control weeds.
  E) the production of oats rather than wheat.

Question 2

Which of the following will increase the evaporation (E) from the soil surface?
 
  A) plastic mulch
  B) the use of no-till culture
  C) stubble mulch farming
  D) adding straw mulch to the soil surface
  E) none of the above

[akemokai]

Answer to Question 1

B

Answer to Question 2

E