what types of macroinvertebrates are found in water of good quality versus water of poor quality what are some examples of each? PLEASE HELP ME

The real answer is keeping the world healthy so we won’t die

B. a graduated substance

Ans. : frostbite is when exposure to cold temperatures causes freezing to the skin or other tissues. it most commonly affects the hands, feet, and face. the longer areas are exposed to cold, typically the worse the frostbite. the water temperature used for rewarming a frostbitten part should be : (102 -105) f degrees.