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Author Question: Average global temperatures from thousands of years ago can be determined by measuring which of the ... (Read 31 times)

Capo

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on: Aug 27, 2018
Average global temperatures from thousands of years ago can be determined by measuring which of the following from a glacial ice core?
 
  A) The half-life of radioactive water.
  B) The size of ice crystals.
  C) The ratio of deuterium to hydrogen.
  D) The percentage of atmospheric nitrogen.

Question 2

Ideally, if the rate at which humans produced carbon dioxide were to hold steady, then the amount of carbon dioxide in the atmosphere would ________.
 
  A) continue to increase
  B) also hold steady
  C) begin to decrease
  D) none of the above


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katara

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Reply #1 on: Aug 27, 2018
Answer to Question 1

C

Answer to Question 2

A


Capo

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Reply 2 on: Aug 27, 2018
:D TYSM

scikid

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Reply 3 on: Yesterday
Excellent

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