<span>The velocity of light is by far the greatest in air. There is nothing in air to stop or impede the movement of light in air. When light travels in air it will not stop unless running into clouds, smoke, smoke, droplets, or impurities. Any other substance is harder for light to travel through.</span>
Answer:
15 and Increasing
Explanation:
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Have a wonderful day and many more to come
Alexis~
~A.K.A Moon~
The quest to put Americans on the moon before the Soviets do. During the Space Race, a couple of astronauts went up into space only to be tragically killed in an explosion.
<span>Sound waves with frequency higher that 20,000 Hz are referred to as "Ultrasonic"
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