_______________ uses no radiation. It uses very high-frequency sound waves and the echoes they produce when they hit an object

What is NFPA 1500?

A) Standard on fire department occupational safety and health program B) Standard on fire department risk management C) Standard on fire department training D) Standard on professional qualifications for fire officers

Day-to-day successes and failures are likely to affect a person's _______

a. self-concept.
b. self-esteem
c. autonomy.
d. social needs.