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Author Question: Together, three natural elements make up 99 of the Earth's biomass. Which of the following is not ... (Read 94 times)

segrsyd

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on: Jul 14, 2018
Together, three natural elements make up 99 of the Earth's biomass. Which of the following is not one of those three elements?
 
  A) oxygen (O)
  B) hydrogen (H)
  C) nitrogen (N)
  D) carbon (C)

Question 2

In the soil, which of the separates are associated with significant chemical activity?
 
  A) Sand
  B) Silt
  C) Clay
  D) Aluminum
  E) Radium


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chereeb

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

C

Answer to Question 2

Answer: C


segrsyd

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Reply 2 on: Jul 14, 2018
Gracias!

amcvicar

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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