Cars speedometer reads 10,500 km at the start pf a trip and 10,700 km at the end. determine distance and displacement

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.

The answer to this is the 3rd choice!

Use a magnet to separate iron, evaporate water, i'm not sure how to separate the other two i'm sorry but good luck