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Author Question: ________ is an odorless and colorless gas, a product of the combustion of fossil fuels and burning ... (Read 96 times)

anshika

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on: Jul 1, 2018
________ is an odorless and colorless gas, a product of the combustion of fossil fuels and burning wood. It is a leading cause of accidental poisoning in the U.S.
 
  a. Radon
  b. Carbon monoxide (CO)
  c. Nitrogen dioxide
  d. Sulfur dioxide

Question 2

A(n) _______________ is the subsystem of ecology that emphasizes the relationship between organisms and their environment.
 
  a. Ecosystem
  b. Carbon footprint
  c. Biology
  d. Socio-psychology


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kingdude89

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

B

Answer to Question 2

A


anshika

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Reply 2 on: Jul 1, 2018
Excellent

miss.ashley

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Reply 3 on: Yesterday
Gracias!

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