A Welded Igneous Texture Indicates That

question 137

Multiple Choice

A welded igneous texture indicates that:

• A) there was a lot of gas in the magma
• B) the rock cooled quickly
• C) the rock broke apart as it flowed
• D) the rock cooled slowly
• E) the ash and pumice were hot and became compacted

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Definitions:

Lower Control Limit

A threshold value in statistical process control below which a process is considered to be out of control on the lower side.

Rational Subgroups

Groupings within a data set that are formed based on logical or natural relationships, often used in quality control to evaluate variation within and between these groups.

Item-To-Item Variation

The variability in characteristics or attributes between individual items within a batch or sample.

Special Causes

Variations in a process that are caused by specific, identifiable factors, distinguishing them from random, common causes of variation.