Because of their huge numbers and direct access to soil organic ...

[savannahhooper]

Because of their huge numbers and direct access to soil organic matter, free living microorganisms such as Azotobacter typically fix more nitrogen per hectare of land than do nitrogen-fixing bacteria living in plant roots.
 
  Indicate whether the statement is true or false

Question 2

Which of the following human actions is most apt to result in a long term increase in soil pH?
 
  A) irrigation with high sodium salt-containing waters
  B) application of NH4- containing fertilizers
  C) emission of gases from automobiles
  D) application of farm manure
  E) application of unlimed sewage sludge

[Ahernandez18]

Answer to Question 1

FALSE

Answer to Question 2

A

[savannahhooper]

YES! Correct, THANKS for helping me on my review

[AmberC1996]

Thanks for the timely response, appreciate it