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Author Question: Haiti has presented the most serious threat to U.S. foreign policy interests in the Caribbean since ... (Read 37 times)

wrbasek0

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on: Jul 14, 2018
Haiti has presented the most serious threat to U.S. foreign policy interests in the Caribbean since the 1950s.
 
  Indicate whether the statement is true or false

Question 2

Quartzite and marble are nonfoliated metamorphic rocks with similar appearances, which often confuse introductory geology students. Devise an experiment to differentiate between these two samples.
 
  What will be an ideal response?


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rekilledagain

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

FALSE

Answer to Question 2

Answer: Quartzite often forms from quartz sandstone and contains the mineral quartz, which would scratch a glass plate. Marble contains the mineral calcite, which has a hardness of 3 and reacts with hydrochloric acid. Quartzite would also scratch marble.


wrbasek0

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Reply 2 on: Jul 14, 2018
Gracias!

juliaf

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Reply 3 on: Yesterday
:D TYSM

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