The Upper Atmosphere Shield That Blocks Dangerous Ultraviolet Light, Protecting

question 37

Multiple Choice

The upper atmosphere shield that blocks dangerous ultraviolet light, protecting humans from sunburn and skin cancer is called the .

• A) ozone layer
• B) ionosphere shield
• C) stratosphere screen
• D) ultraviolet filter

---

Definitions:

Production Process

The method or series of actions taken to manufacture a product, from the acquisition of raw materials to the final product.

Present Value

Today's value of a future money amount or sequence of cash flows, determined by a certain rate of return.

Initial Investment

The initial amount of money invested in a project or venture.

Financial Break-Even

The point at which total revenues equal total costs and expenses, leaving no net gain or loss.