Pillow Basalts,shown Below,attain Their Distinctive Blob-Like Shapes Because Their Parent

question 31

Multiple Choice

Pillow basalts,shown below,attain their distinctive blob-like shapes because their parent lavas do not travel far prior to solidification.This is because the parent lavas ____________.

• A) are completely devoid of volatiles and thus travel slowly
• B) erupt underwater and thus cool very quickly
• C) are highly felsic and thus travel slowly
• D) are ultramafic and thus freeze at exceptionally high temperatures

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Definitions:

Means

Refers to the average value in a set of numbers, calculated by adding all the numbers together and dividing by the count of these numbers.

Critical Value

A threshold value in statistics which, when exceeded by the test statistic, leads to the rejection of the null hypothesis.

P-value

A statistical measure that helps scientists determine the significance of their research results, indicating the probability of observing the data if the null hypothesis were true.

Racing Speeds

The velocities at which competitors move during a race.