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Author Question: During the 19th century, as populations grew and urban environments expanded, humans had less ... (Read 66 times)

NClaborn

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on: Jul 14, 2018
During the 19th century, as populations grew and urban environments expanded, humans had less exposure to ________.
 
  A) air pollutants
  B) natural environments
  C) animals
  D) water
  E) chemicals

Question 2

What types of geologic evidence are diagnostic of glaciation?
 
  What will be an ideal response?
The Environment and You ¦ Christensen, Leege ¦ 2nd Edition
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dellikani2015

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Reply #1 on: Jul 14, 2018
Answer to Question 1

B

Answer to Question 2

In addition to topographic features left by glaciers (such as karsts and kettles), geologic evidence includes glacial till, rock striations, and loess. Geochemical evidence includes changes in the 18O of seawater.


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