Don't get the question can someone explain it to me or answer it? ?

Aflashlight produces light using energy from the batteries. in which order does the energy change form? a. from chemical to electric to light energy b. from electric to light to chemical energy c. from electric to chemical to light energy d. from light to electric to chemical energy

Compare the composition of the moon's surface with the composition of the earth's surface.

What element is able to combine with itself and hydrogen to form large molecules ?