Select the correct answer. An iron nail is made up of particles. What is true about the particles?

A. They move all over the place.

B. The force of attraction between them is small.

C. The spacing between them
is large.

D. They stay in place and vibrate.

The total number of electrons is 14

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.