What are the limitations of litmus paper and phenolphthalein indicators? Name two other indicators that can be used that do not have such limitations.

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.

Higher temperature = molecules move around faster. and vice versa.