The difference in mass number of a given isotope of the same element comes from different numbers of... a. neutrons
b. electrons
c. protons

Idon’t know sorry i don’t know the answer i’m s sorry

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.

Answers are 1,2,4 its correct on edgenuity.