Why Don't All Igneous Rocks Contain All the Minerals Listed

question 30

Multiple Choice

Why don't all igneous rocks contain all the minerals listed in Bowen's Reaction Series?

• A) Minerals degrade with time, leaving only some of the series behind in igneous rocks.
• B) Crystallization may be complete before all of the minerals in the series have had time to form.
• C) Not all of the minerals in the series have the ability to form in every rock.
• D) Bowen's Reaction Series only applies to some igneous rocks, not all.

---

Definitions:

Average Total Cost

The total cost of production divided by the quantity of output produced, representing the average cost per unit of output.

Profit

The financial gain achieved when the revenue from business activities exceeds the expenses, costs, and taxes needed to sustain the activity.

Marginal Cost

The escalation in cumulative price involved in fabricating one extra unit of a product or service.

Average Revenue

The amount of income generated per unit of sale or service offered, calculated by dividing total revenue by the number of units sold.