What Is a Porphyroblast

question 52

Multiple Choice

What is a porphyroblast?

• A)a common type of copper ore deposit
• B)an igneous rock with two distinct crystal sizes
• C)a relatively large metamorphic mineral
• D)a strongly foliated metamorphic rock

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Definitions:

Gallon of Gasoline

A unit of measurement equal to 3.785 liters used for measuring the volume of gasoline.

Substitution Effect

Variations in consumption habits influenced by the change in prices of goods in comparison to each other, leading to a preference shift among consumers from one good to another.

Cheaper

Describes goods or services being offered at a low price, especially in relation to comparable items.

More Expensive

Refers to items or services that have a higher cost or price in comparison to others.