Acid rain describes any form of precipitation that contains high levels of nitric and sulfuric acids. It can also occur in the form of snow, fog, and tiny bits of dry material that settle to Earth.

The film is a whimsical explanation of the water cycle, presented as a response to a child's letter about rain. The narrator explains how rain is formed, the process of evaporation, condensation, and ...

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 the form of snow ...