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Author Question: Most marine organisms produce the mineral substance ________, which will later become limestone. ... (Read 108 times)

wenmo

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on: Jul 16, 2018
Most marine organisms produce the mineral substance ________, which will later become limestone.
 
  A) SiO2
  B) SO2
  C) H2CO3
  D) CaCO3

Question 2

A ________ is a solid, naturally occurring, cohesive substance composed of minerals or mineral-like materials.
 
  A) tetrahedron
  B) mineral
  C) rock
  D) mixture


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bulacsom

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: C


wenmo

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Reply 2 on: Jul 16, 2018
:D TYSM

sultana.d

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Reply 3 on: Yesterday
Excellent

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