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Author Question: The colonization of life onto land was closely tied to the A) appearance of multicellular ... (Read 113 times)

EY67

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on: Jul 27, 2018
The colonization of life onto land was closely tied to the
 
  A) appearance of multicellular organisms
  B) development of photosynthesis
  C) oceans being overcrowded
  D) development of the ozone layer

Question 2

What is the maximum depth from which a pump on the surface can suck up water?
 
  What will be an ideal response?


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Edwyer

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Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

Atmospheric pressure will support a column of water about 10. m high.


EY67

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Reply #2 on: Jul 27, 2018
Thanks


Edwyer

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Reply #3 on: Jul 27, 2018
Welcome :)


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