Which of the following objects would transfer heat by convection?

A. oxygen
B. ice cube

What happens to light waves from a star as the star moves away from earth?

While standing outdoors one evening, you are exposed to the following four types of electromagnetic radiation: yellow light from a sodium street lamp, radio waves from an am radio station, radio waves from an fm radio station, and microwaves from an antenna of a communications system. rank these type of waves in terms of increasing photon energy.

This is for my 8th grade science class, i really don’t understand. can someone me? , lol.