What water sample would you drink from? Why?

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.

Ans() ; the burning of them contributes to global warmingthey come from decayed organic material;

The basic unit of a chemical element