6.5 Environmental Consequences of Non-Renewable Energies: Acid Rain
Acid rain is a consequence of the use of non-renewable energy sources. Acid rain is no longer regarded as a major threat to the environment in Europe, mainly because EU member states have reduced their emissions of the gases that cause acid rain. However, as long as we continue to burn fossil fuels, there will be some acid rain.
7. How acid rain forms 4
Acid rain kills plant life, pollutes rivers and streams and erodes stonework
Damage to Farmlands and Forests
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Gases carried by the wind
Gases dissolved in rain water form acid rain
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Acidic gases (sulphur dioxide and nitrogen oxide) released into atmosphere
The acidic nature of acid rain leaches nutrients available to plants from the soil and so affects agricultural productivity.
Acid rain also affects the quality of agricultural products. It can damage the leaves of vegetables such as spinach and destroy tomatoes, as seen here.
Question Time
1. Draw and label a diagram showing how acid rain forms. 2. Explain two negative effects of acid rain. 3. In Europe, why is acid rain no longer as great a threat as it once was?
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Acid rain weakens trees, damages leaves, limits the levels of nutrients available to the trees or poisons them slowly with toxic substances released by the soil. Here we see spruce trees in a Polish forest destroyed by acid rain.
Acid rain damages buildings and structures because it dissolves the exposed stone or rusts the metal.