Soil taxonomy is based on properties of the soil as they can be ...

[Metfan725]

Soil taxonomy is based on properties of the soil as they can be observed in the field or laboratory.
  Does it include a hierarchical grouping to show how the levels relate?

 
  Indicate by YES (Y) or NO (N).

Question 2

Was the current USDA classification system originally published in 1960, modified and republished in
  1979, and had Gelisols added to it in 1998?

 
  Indicate by YES (Y) or NO (N).

[mcomstock09]

Answer to Question 1

Y

Answer to Question 2

N

[Metfan725]

YES! Correct, THANKS for helping me on my review

[helenmarkerine]

TYSM