It is D. X rays have a shorter wavelength than microwaves.
No, according to many pictures taken in space, the moon is white. However, on rare occasions, the moon appears blue.
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It is powered by the Earth's rotation and the moon gives a little boost.
Answer: Smoking cigarettes
Explanation: The other options don't cause pollution to form in the air besides smoking, from the particles it creates causing harm and damage to your lungs and fill the air with smoke particles.