What creates caverns in limestone rock?
a. ?Underground streams erode the walls of the channels they flow through.
b. ?Limestone is deposited as a sediment, and caverns exist where organic material was trapped and decomposed.
c. ?Earthquakes create gaps at weak boundaries in the limestone.
d. ?Limestone dissolves in the presence of salt, and creates caverns when located under the sea.
e. ?Acidic rainwater dissolves limestone rock, leaving empty caverns.
ANSWER: e
You might also like to view...
With respect to the Coriolis force, which association is NOT correct?
A) deflection — always at a 90 degree angle to the direction of air flow B) Low wind speeds — strongest deflection C) North Pole — strongest deflection D) Northern Hemisphere — deflection to the right of the wind's original direction
A condensation type which is a form of sublimation is:
a. dew. b. frost. c. fog. d. clouds.
One method of geologic dating is dendrochronology, or the science of tree ring dating. Based on what you know about tree rings, how could you determine the age of the tree? Would this be an example of relative dating or numerical dating?
What will be an ideal response?
Judge the following sentence according to the criteria given below: Diatoms need strong sunlight and are found only within the upper, sunlit surface waters of the ocean BECAUSE they provide most of the silica in biogenous ooze
A) The assertion and the reason are both correct, and the reason is valid. B) The assertion and the reason are both correct, but the reason is invalid. C) The assertion is correct, but the reason is incorrect. D) The assertion is incorrect, but the reason is correct. E) Both the assertion and the reason are incorrect.