What are the allotropes of sulphur and phosphorus?

Allotropes of sulphur
Monoclinic sulphur
Rhombic sulphur
Amorphous sulphur
Plastic sulphur

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.