The Five Mass Extinctions Occurred at the End of Which

question 33

Multiple Choice

The five mass extinctions occurred at the end of which periods?

• A) Permian, Cretaceous, Devonian, Carboniferous, Silurian
• B) Triassic, Devonian, Permian, Cretaceous, Ordovician
• C) Jurassic, Cretaceous, Cambrian, Carboniferous, Silurian
• D) Ordovician, Silurian, Cambrian, Devonian, Carboniferous
• E) Devonian, Cambrian, Jurassic, Cretaceous, Permian

---

Definitions:

Direct Labor-Hour

A measure of the amount of time spent by workers who are directly involved in the production process of creating goods or services.

Merchandising Firm

A type of business that purchases finished products and sells them to consumers without altering the form of the goods.

Merchandise Inventory

Items and merchandise that are kept by a business with the intention of selling them to consumers.

Selling Expenses

Costs incurred directly from the selling of products or services, such as advertising and sales staff salaries.