1. The protons in the nucleus attract electrons. True or False

2. Neutrons have a positive charge.
True or False

3. Scientists have discovered over two hundred elements.
True or False

4. An element is composed of at least two kinds of atoms.
True or False

About 8 gallons of fuel will be used. (8.08)

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.