What Is a Main Hazard of This Type of Volcano

question 87

Multiple Choice

What is a main hazard of this type of volcano?

• A) hot fragments thrown a short distance from the volcano
• B) burning, building collapse, and suffocation from widely distributed pyroclastic material
• C) destruction by moderately fluid lava flows that can flow far from the volcano
• D) volcanic mudflows and landslides
• E) relatively small pyroclastic eruptions caused by localized explosions or collapse

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Definitions:

Alpha Level

The threshold of significance in hypothesis testing, representing the probability of making a Type I error.

Confidence Interval

A range of values, derived from sample statistics, used to estimate the true parameter of a population with a specified level of confidence.

Null Hypothesis

A statement in statistical hypothesis testing that proposes no significant difference or effect, assumed true until evidence suggests otherwise.

Two-Tail Test

A statistical test where the critical area of a distribution is two-sided and tests whether a sample is either greater than or less than a certain range of values.