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Author Question: Chickens were being raised by the Chinese about ____________________ B.C. Fill in the blank(s) ... (Read 159 times)

tsand2

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Chickens were being raised by the Chinese about ___________________ _ B.C.
 
  Fill in the blank(s) with the appropriate word(s).

Question 2

Animal manure can be used as raw material to produce ___________________ _ in gas digesters
 
  Fill in the blank(s) with the appropriate word(s).



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SeanoH09

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Answer to Question 1

1400

Answer to Question 2

methane




tsand2

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Reply 2 on: Jul 21, 2018
Wow, this really help


JCABRERA33

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

 

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