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Author Question: Which of the following is both a natural pollutant and a human-generated pollutant in the world ... (Read 61 times)

Pea0909berry

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on: Aug 22, 2018

Which of the following is both a natural pollutant and a human-generated pollutant in the world ocean?
  a. plastics
  b. halogenated hydrocarbons
  c. chlorinated hydrocarbons
  d. PCBs
  e. oil



Question 2

What is hypoxia?
  a. The increase of carbon dioxide in an area
  b. The depletion of free oxygen in an area
  c. The depletion of nutrients in an area
  d. The increase of nitrogen in an area
  e. The increase of free oxygen in an area



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jaykayy05

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Reply #1 on: Aug 22, 2018
Answer to Question 1

e

Answer to Question 2

b


Pea0909berry

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Reply 2 on: Aug 22, 2018
Excellent

diana chang

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Reply 3 on: Yesterday
:D TYSM

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