Stratovolcanoes Have Relatively Steep Sides Because ____

question 50

Multiple Choice

Stratovolcanoes have relatively steep sides because ____.

• A)they are composed of compacted ash
• B)they are composed of strong basalt with little ash
• C)their magma has moderate viscosity so lavas flow a short distance before cooling
• D)their explosions are fast and catastrophically explosive
• E)they grow slowly, as new magma pushes them higher, often without eruption

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Definitions:

Significance Level

The threshold at which the null hypothesis is rejected in statistical testing, often denoted as alpha (α).

Statistics

The science of collecting, analyzing, interpreting, and presenting data.

P-value

The probability measure indicating the likelihood of obtaining test results at least as extreme as the results actually observed, assuming that the null hypothesis is correct.

Age Groups

Categories of populations made according to age range, often used in statistics and demographic studies.