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  1. Acid rain - Wikipedia

    Acid rain is rain or any other form of precipitation that is unusually acidic, meaning that it has elevated levels of hydrogen ions (low pH).

  2. What is Acid Rain? - US EPA

    Mar 4, 2025 · Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the …

  3. Acid rain | Definition, Causes, Effects, & Formulas | Britannica

    Acid rain, precipitation possessing a pH of about 5.2 or below mainly produced from the emission of sulfur dioxide (SO2) and nitrogen oxides (the combination of NO and NO2).

  4. Acid rain causes, effects, and solutions | National Geographic

    Feb 28, 2019 · Acid rain is any form of precipitation that contains high levels of nitric and sulfuric acids. First coined by Scottish chemist Robert Angus Smith in 1852, acid rain can also occur in …

  5. Guide to acid rain: Causes, effects, and ongoing solutions

    Explore acid rain - its causes, effects on ecosystems, and the ongoing efforts to address this environmental issue. Learn how air pollution from fossil fuels contributes to acidic precipitation …

  6. Acid Rain: How It Affects Your Health - WebMD

    Oct 10, 2025 · Acid rain can harm the environment and your health. Learn about what causes it and how to prevent it.

  7. Explainer: What Is Acid Rain? - Earth.Org

    Sep 1, 2020 · Acid rain, or acid deposition, is defined or a term that includes any form of precipitation with acidic components, like sulphuric or nitric acid, that falls from the atmosphere …

  8. Acid Rain: Types, Causes, Effects and Impacts - Next IAS

    Oct 31, 2025 · Acid rain is a major environmental problem. It explains what it means, how it forms, its causes, harmful effects, and ways to reduce acid deposition.

  9. Acid Rain | U.S. Geological Survey - USGS.gov

    Mar 2, 2019 · Since rain naturally has things dissolved in it, it will always be slightly acidic. However, when rain reacts with certain air pollutants, such as sulfur or nitrogen oxides, the …

  10. Acid Rain - Definition, Effects, Disposition, Causes, and Prevention

    Jul 23, 2025 · In this article, we will study acid rain definition, effects, causes, and prevention in detail.