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Author Question: The approximate size of an atom is a. 10-6 m. b. 10-8 m. c. 10-10 m. d. 10-12 m. e. 10-14 ... (Read 30 times)

EY67

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on: Jul 28, 2018
The approximate size of an atom is
 
  a. 10-6 m.
  b. 10-8 m.
  c. 10-10 m.
  d. 10-12 m.
  e. 10-14 m.

Question 2

Nitrogen fixation and runoff of nitrogen applied to the soil pose problems for agricultural production and the environment. Why is this so? Explain.
 
  What will be an ideal response?


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Swizqar

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Reply #1 on: Jul 28, 2018
Answer to Question 1

C

Answer to Question 2

The soils that are overfertilized become depleted in nutrients and less fertile,
demanding more fertilizer. Also, runoff brings the applied chemicals into groundwater and
streams, where it can be ingested by humans. The phosphorus and nitrogen compounds
have been shown to have effects in humans in large quantities, and it is not known what
effects of exposure to small concentrations will be.


EY67

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Reply #2 on: Jul 28, 2018
TY


Swizqar

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Reply #3 on: Jul 28, 2018
You're welcome


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