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Author Question: With respect to air, water, and material resources, which of the following is true? A) A forest ... (Read 109 times)

cabate

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on: Jul 14, 2018
With respect to air, water, and material resources, which of the following is true?
 
  A) A forest is a closed system.
  B) A forest is an open system.
  C) A forest is an open system in terms of air, but closed in terms of material resources.
  D) A forest is an open system in terms of water, but closed in terms of energy resources.

Question 2

In terms of matter and resources, the Earth is essentially a(n) ________ system; In terms of energy, the Earth is a(n) ________ system.
 
  A) closed; closed
  B) closed; open
  C) open; open
  D) open; closed


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mjbamaung

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Reply #1 on: Jul 14, 2018
Answer to Question 1

B

Answer to Question 2

B


cabate

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Reply 2 on: Jul 14, 2018
:D TYSM

billybob123

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Reply 3 on: Yesterday
Excellent

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