When heat is added to a material, its thermal energy increases its thermal energy increases
its temperature increases
its molecules move faster
all of the above

Explanation:

All the above

1

When the average kinetic energy of its particles increases, the object's thermal energy increases. Therefore, the thermal energy of an object increases as its temperature increases.

a) electrical > light, sound, and thermal< < < <

) the mechanical energy of the firefighter moving.< < < < a) electrical > light, sound, and thermal< < < <

c) both a and b.