Why is historical geology important?
A) It integrates the chemical, physical and biologic processes to interpret the history of the Earth.
B) It helps to update a list of records for every geologic event in history.
C) It helps geologists to understand groundwater and its uses.
D) It helps geologists find oil.
Answer: A
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Farmers have filled in over 90% of natural wetlands. What has been the result?
A. increased flooding potential B. decreased runoff to streams C. decreased pollution to streams D. increased aquifer discharge
Which of the following regions has the lowest annual frequency of tornadoes?
A) Florida B) North Texas to the Dakotas C) Gulf Coast D) Northeast coast
By the principle of ________, the surface feature known as the Grand Canyon is ________ than the sedimentary formations that are exposed in the side walls of the Grand Canyon.
A. inclusion; older B. superposition; younger C. cross-cutting relationships; older D. superposition; older E. cross-cutting relationships; younger
Which of the following is an example of an ecosystem?
A) a colony of leafcutter ants, the leaves they harvest, and the fungi that they cultivate and tend to B) a colony of leafcutter ants living in a forest C) a colony of leafcutter ants, the leaves they harvest, the fungi that they cultivate and tend to, and the soil nutrients and moisture needed for their garden D) a colony of leafcutter ants and the leaves they harvest for their fungal garden E) These are all examples of ecosystems.