Human Impacts on the Earth Environment
To remember the pollutants which cause acid rain:
SNAP: Sulfur Nitrogen Are Pollutants
Buildings such as power plants or refineries expel sulfur and nitrogen oxides into the air, which combine with water vapor to produce sulfuric and nitric acids.
These acids in the atmosphere then are deposited onto the environment in the form of acid rain. It can also be deposited as fog, snow, or particulates (in dry areas).
typically has a pH of less than 5.0, whereas regular rain has a pH of around 5.6.
measures the acidity of a substance, the lower the pH value, the more acidic a substance is (more
Acid rain is typically found in industrialized areas
To remember the pollutants which cause acid rain: SNAP: Sulfur Nitrogen Are Pollutants
Sulfuric acid, nitric acid, and mercury
are among the many types of pollutants that cause acid rain
The Effects of Acid Rain
Acid rain destroys plants and makes them more vulnerable to destruction.
Some acids deposit on the ground dry, resulting in the soil being stripped of its basic nutrients.
Small animals often die when they are exposed to acid rain, causing larger animals to lose a valuable food source.
Fish die in water that is too acidic, and crops cannot grow in soil exposed to acid rain.
Since acid rain can travel far, its effects can be spread to far distances.
Acid rain can deteriorate trees and other plants as well.
Discuss how acid forms, beginning with the formation of acid from refineries or power plants
What is acid rain and why is it bad?
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