Sound waves require a medium to travel through, such as a solid, liquid, or gas because?

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

George is a dalmatian puppy. describe what happens to light that allows you to see george’s black and white coat.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space