Light___.
requires a medium to travel
is refracted when it bounces off a shiny surface
is created by vibrations in electric and magnetic fields
moves in longitudinal waves

Does not

Explanation:

Light doesn't require a medium to travel.

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answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation: