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Author Question: The pervasive alteration of global ecosystems is mainly the result of A) global climate change. ... (Read 163 times)

Jkov05

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on: Jul 16, 2018
The pervasive alteration of global ecosystems is mainly the result of
 
  A) global climate change.
  B) increased frequency of wildfires in the past 500 years.
  C) human activities.
  D) the movement of continents by plate tectonics.

Question 2

Which of the following has a negative effect on radiative forcing?
 
  A) Methane
  B) Nitrous oxide
  C) Sulfate aerosols
  D) Carbon dioxide


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af

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

C

Answer to Question 2

C


Jkov05

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Reply 2 on: Jul 16, 2018
:D TYSM

yeungji

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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