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What is an unconformity? Illustrate the three types of unconformities.
Q6: If horizontal sedimentary strata overlie tilted strata
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Q14: Which of these factors is NOT important
Q23: The net chemical change in a metamorphic
Q24: How is the half-life of a radioactive
Q28: The mineral class that makes up more
Q35: The metal ores that are found in
Q39: Which of the following consist(s)of large boulders
Q42: In the image below,label the confined aquifer,the
Q55: How and where does a placer deposit