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Author Question: The social and economic changes in Thailand over the past 50 years have A) caused the population ... (Read 136 times)

itsmyluck

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on: Jul 16, 2018
The social and economic changes in Thailand over the past 50 years have
 
  A) caused the population to decline by 20.
  B) been at the expense of poorer nutrition for children.
  C) slowed population growth significantly.
  D) shown that the nation has yet to undergo the fertility transition.

Question 2

The trickling-filter system and the activated-sludge system both require
 
  A) high levels of oxygen to promote aerobic decomposition.
  B) high levels of carbon dioxide to adjust the pH of the water for bacterial action.
  C) the addition of large amounts of chlorine to kill pathogens.
  D) the addition of large amounts of ammonia as nutrients to support decomposers.


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l.stuut

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

C

Answer to Question 2

A


itsmyluck

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Reply 2 on: Jul 16, 2018
Wow, this really help

shailee

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Reply 3 on: Yesterday
Excellent

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