Pls i need the diffrences between sound waves and light waves

Sound waves need a medium to go through and are created through vibrations, whereas light waves need no medium, meaning it can move through space. Light also doesn’t loose energy when reflected, but sound waves get absorbed by the medium they go through causing it to loose energy.

in physics zero. in muscle fatigue could be high

causes

fossil fuels burn

cities become more industrialized

human population grows worldwide