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Why Does Rain Smell?

Key Facts In This Video

  1. Petrichor is the scientific name of the smell of rain. 00:21

  2. The smell of rain is often the result of rain hitting the soil and interacting with substances that helped maintain the dirt. 01:16

  3. Ozone, which also smells of rain, is formed when lightning ionizes a molecule of oxygen. 01:40

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