acid rain model 3d making using cardboard | science project diy | howtofunda
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Acid rain is a significant environmental issue that affects ecosystems, human health, and infrastructure worldwide. It refers to any form of precipitation—rain, snow, fog, or dust—that has a lower pH than normal, making it more acidic.

The phenomenon is primarily caused by the release of sulfur dioxide (SO₂) and nitrogen oxides (NOₓ) into the atmosphere, which react with water vapor, oxygen, and other chemicals to form sulfuric and nitric acids.