What framing materials are used in commercial greenhouses? ...

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What framing materials are used in commercial greenhouses?
 
  What will be an ideal response?

Question 2

Compare frogs and floral foam for use in floral arrangements in terms of cost, reusability, and flexibility of design they allow.
 
  What will be an ideal response?

[ansleighelindsey]

Answer to Question 1

Wood, aluminum alloy, steel bars or pipe

Answer to Question 2

Metal frogs are an old-fashioned floral arrangement device that can be reused again and again but are difficult to clean. Floral foam is used only one time, so it is more expensive, but it allows the designer more flexibility in the design of the arrangement.

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TYSM

[amandalm]

Gracias!