When Geologists Conclude That the Grand Canyon Sequence of Rocks

question 20

Multiple Choice

When geologists conclude that the Grand Canyon sequence of rocks was formed through hundreds of millions of years of deposition,mountain building,and erosion,they are basing this conclusion on the principle of ____which states that____ .

• A)catastrophism;most rock formations were created as a result of supernatural processes
• B)catastrophism;a single,large flood was responsible for the creation of the rock sequence
• C)uniformitarianism;all geologic processes take immense amounts of time to occur and always occur at the same rate
• D)uniformitarianism;the geologic processes that operated in the past are the same as those that operate today,and they occurred in accordance with the same laws of nature that are operating today
• E)stasis;the Grand Canyon today is as it has always been,never changing

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Definitions:

Statistical Significance

Indicates the likelihood that a result or relationship is caused by something other than mere chance.

Statistical Probability

The quantification of the likelihood of an event occurring based on a ratio of favorable outcomes to the total number of possible outcomes.

Statistical Precision

How similar the results are when measurements are taken repeatedly in unaltered circumstances.

T-statistic

A value derived from a T-test that measures the size of the difference relative to the variation in the sample data.