Any event or situation that places extraordinary demands on a person's mental and/or emotional resources is called a _______

Hazardous materials may be present in any setting: residential, business, or highway. If you suspect hazmat, use _____________________________ to inspect the scene from a distance

Fill in the blank(s) with correct word

The United States has always had a ______-based economy.

Fill in the blank(s) with the appropriate word(s).