What Volcanic Events Formed Crater Lake, OR? When Did They

question 143

Multiple Choice

What volcanic events formed Crater Lake, OR? When did they take place?

• A)A powerful explosion blew away the top of a composite volcano; 10 million years ago.
• B)The crater of a large, extinct cinder cone filled with water; 5 million years ago.
• C)Landslides and volcanic mudflows dammed the Mazama River; 500 years ago.
• D)Caldera collapse followed major ash and pyrodastic-flow eruptions; 7700 years ago.

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Definitions:

Raw Materials Inventory

Items and substances in stock that will be used in the manufacturing process to create goods and products.

Net Operating Income

A company's revenue minus its operating expenses, excluding taxes and interest.

Work in Process Inventory

Items that are in the process of being manufactured but are not yet complete.

Labor Rate Variance

The difference between the actual cost of labor and the expected (or standard) cost, often analyzed in cost accounting or budgeting.