Extended exposure to certain sounds can be harmful. which sound may damage hearing? refrigerator running (40 decibels) vacuum cleaner running (70 decibels) hair dryer blowing (80 decibels) shotgun firing (145 decibels)

Which food preservation method can people use at home? a. fermentation b. irradiation c. pasteurization d. thermal processing

Aperson who is overweight is to percent over his or her ideal body weight

A. hannah wants to improve her cardiorespiratory fitness levels, so she begins to alternate running on a flat track with running up stadium stairs. this principle is known as a type b tedium c time d frequency 2. charlie is easily winded during soccer practice and wants to improve his cardiorespiratory fitness. which activity would be best for him to choose? a lifting weights b walking from one class to another c running in a 5k race d riding a bike at a leisurely pace 3. felicia just began running this past month, but since she continues to run the exact same route and exact same distance every day, she is growing bored with her runs. this principle is known as a tedium b progression c specificity d reversibility