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Author Question: What is karst topography? What are some of the features of karst? What will be an ideal ... (Read 146 times)

burton19126

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on: Jul 15, 2018
What is karst topography? What are some of the features of karst? What will be an ideal response?

Question 2

How can limestone be dissolved by groundwater when it is almost insoluble in pure water? How does
  this happen? What will be an ideal response?



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Edwyer

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Karst develops by groundwater erosion in areas underlain by soluble rocks. Karst is usually created by
limestone. The topography is characterized by numerous caves, springs, sinkholes, solution valleys,
and disappearing streams.



Answer to Question 2

Most groundwater naturally contains some carbonic acid and is slightly acidic. The water becomes
acidic when it combines with carbon dioxide (CO2) from the air or decaying organic matter. The
chemical reaction is H2O + CO2  H2CO3.



burton19126

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Reply 2 on: Jul 15, 2018
YES! Correct, THANKS for helping me on my review

xiaomengxian

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Reply 3 on: Yesterday
Wow, this really help

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