Humic substances consist of ________. A) dead plant & ...

[skymedlock]

Humic substances consist of ________.
 
  A) dead plant & animal tissues
  B) living organisms and cells
  C) polymerized, non-identifiable molecules
  D) identifiable biomolecules
  E) all of the above

Question 2

After drying to eliminate the water in plant litter, which two elements account for about 80 of the dry weight?
 
  A) Ca and C B) N and S C) C and H D) N and C E) C and O

[joneynes]

Answer to Question 1

C

Answer to Question 2

E

[skymedlock]

TYSM

[amandanbreshears]

YES! Correct, THANKS for helping me on my review