Question

how should the table be changed to correctly distinguish between mechanical and electromagnetic waves?
earthquake waves and radiation waves need to change places.
light waves and x - ray waves need to change places.
ocean waves and x - ray waves need to change places.
sound waves and light waves need to change places.

Explanation:

Mechanical waves require a medium (like air, water, or solid) to travel. Examples are ocean waves (travel in water), earthquake waves (travel in Earth's crust), and sound waves (travel in air, water, or solids). Electromagnetic waves don't need a medium and can travel in a vacuum. Examples are light waves, radiation waves (like radio - waves, microwaves), and X - ray waves. In the given table, sound waves (a mechanical wave) are wrongly placed in the electromagnetic column and light waves (an electromagnetic wave) are wrongly placed in the mechanical column. So, they need to change places.

Answer:

Sound waves and light waves need to change places.