Limestone consists of rock made from ____.
A) carbon dioxide
B) carbonic acid
C) sodium bicarbonate
D) calcium carbonate
E) carbon silicate
Correct Answer:
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Q3: Rainwater becomes acidic as it dissolves limestone.
Q4: Sinkholes appear suddenly, and cannot be detected
Q5: In order for limestone to collapse to
Q6: Sinkholes are triggered when the groundwater level
Q7: The effects of land subsidence due to
Q9: The uneven, potholed surface of karst is
Q10: Soils with a high smectite clay composition
Q11: Land subsidence increases the hazard of _.
A)earthquakes
B)hurricanes
C)landslides
D)drought
E)flooding
Q12: Swelling soils can lead to saltwater intrusion
Q13: Ground settling from thaws is only found
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