Why is it important to change the sanitizer water when it gets dirty or has organic matter like food debris in it?

Which action is part of becoming involved in community health? a) supporting regional health efforts b)selecting reputable health providers c)creating new health issues to address d)traveling to new regions to promote global health plz i need to graduate

Eyes: snellen chart, cataract risk factors, accommodation lungs: locations, names and descriptions of all normal and abnormal lung sounds. how would i do a bowel assessment? what are the characteristics of pulses and locations where they can be checked? what are the newest guidelines for mammograms? what is the age range for risk factor for testicular cancer? what risk factors are modifiable? what are some examples of primary lesions? compare and contrast at least three different types of lesions. how would you classify a mosquito bite? a tick bite? a shingles rash? how are primary lesions different from secondary lesions? when would you use the bell vs. the diaphragm on the stethoscope?

To avoid food poisoning, perishable items should not be stored in the refrigerator for more than days.