Question

identifying wave interactions through observations
what type of interaction allows the sidewalk to heat up and cook the egg?
absorption
diffraction
reflection
transmission

Explanation:

Absorption is when energy from waves is taken in by a material, causing it to heat up. In this case, the sidewalk absorbs energy from the sun's waves, heating up enough to cook an egg. Diffraction is the bending of waves around obstacles, reflection is the bouncing back of waves from a surface, and transmission is the passing of waves through a medium. None of these other processes cause the heating - up for cooking the egg.

Answer:

absorption