The Ozone Layer Is Valuable Because It Blocks

question 35

Multiple Choice

The ozone layer is valuable because it blocks  

• A) heat.
• B) UV radiation.
• C) radio waves.
• D) asteroids.
• E) X-rays.

---

Definitions:

Guile

The use of clever but usually deceptive methods to achieve one's aims or to manipulate the situation to one's advantage.

Unfair Advantage

An unethical or unjust edge or benefit in a competitive situation that is often gained through exploitation of confidential information or other unethical practices.

Crafty

Exhibiting cleverness or ingenuity, especially in deceiving others.