Read the scenarios and decide which type of interaction (absorption or transmission) took place between the wave and the object.
People are able to hear footsteps because the sound made by a foot hitting the floor travels through the air to reach their ears. When light from the sun hits the sidewalk, the sidewalk becomes warmer.
The gases absorb energy, which slows or prevents the loss of heat into space. They act like a kind of blanket, keeping heat in and radiating it back downwards and raising the temperature of the Earth.
The ecliptic plane is inclined at 23.5° with respect to the celestial equator because of the tilt of the Earth's rotation axis with respect to the plane of its orbit around the sun.
