Flower Bush (IMAGE)
Caption
High elevation spruce-fir forests have a mix of evergreen and deciduous plants. Shown, a rhododendron bush in bloom. Before the Clean Air Act of 1970, the morning fog could have contained acidic particles from air pollution. These acids were hurtful to humans, plants and soil.
Credit
Jennifer Knoepp
Usage Restrictions
For use with story only.
License
Licensed content