Which of the following is not a reason that polyethylene films ...

[student77]

Which of the following is not a reason that polyethylene films has become the most popular greenhouse covering?
 
  A) It comes in multiple thicknesses.
  B) It is less expensive than most other coverings.
  C) It has a long life expectancy.
  D) When used as a double layer it has low heat loss.

Question 2

Top-dressing is a term used in:
 
  A) irrigation. B) marketing.
  C) fertilizer application. D) pruning.

[tofugiraffe]

Answer to Question 1

C

Answer to Question 2

C