Which of the following would NO Links pls not be considered spontaneous?
Select one:

O a cooling a cup of coffee at room temperature

O b. ice melting at room temperature

O c. compression of gas to fill a tire

Od water flowing downhill

Hydrogen is the most abundant element on the periodic table..hope it .

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.