we cannot see air how would you know that if air is moving or not
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We would use something visible like smoke particles. When smoke particles move at a random motion then we can say the air is in motion
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Answer: Air is transparent to our eyes because we have evolved retinas that are sensitive to the very wavelengths of light that pass through it unobstructed – otherwise we wouldn't be able to see anything at all. Wind is just moving air, caused by pressure differences in the atmosphere. We would use something visible like smoke particles. When smoke particles move at a random motion then we can say the air is in motion.
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