. Express the difference of 7.69 and 4.0 using the correct number of significant digits: 3.7 3.70 3.6 3.69

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

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.

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