Skip Navigation

  Button that takes you to the Glossary page. Button that takes you to the Related Links page. Button that takes you to the Problem Based Learning model. Button that takes you to the modules and activities page. Button that takes you to the teacher pages. Button that takes you back to the home page.Image map of some UV Menace puzzle pieces.  Please have someone assist you with this.

Button that takes you to the Humans page.
Button that takes you to the Animal Life page.
Image that says Plant Life.
Image of a tomato on a tomato plant.Plant Life
Terrestrial Plant Life
Since artificial uv radiation does not match the natural variety, it is difficult to do controlled scientific experiments which clarify the effects of uv radiation on plant life. Some terrestrial plants seem to be more sensitive than others. Some species that appear particularly sensitive are barley, oats, sweet corn, soybeans, peas, tomatoes, cucumbers, cauliflower, broccoli, and carrots. Food production decreases about 1% for each 1% increase in uvb. However, within these plant species, some species have varieties that appear to be more resistant. About 45% of trees appear to be sensitive to uv increases. Photo: Courtesy of www.arttoday.com.

Image of phytoplankton in the worlds oceans's that links to a more detailed image.Phytoplankton Phytoplankton are algae at the bottom of the oceanic food chain. Besides being food for fish, they are a sink for atmospheric carbon dioxide and also release dimethyl sulfoxide into the air, a substance important for cloud formation. Phytoplankton generally are present just below the ocean surface, so they do not benefit much from the attenuation of uv radiation in water. Image: Courtesy of GSFC/NASA.

Both uva and uvb inhibit phytoplankton photosynthesis. In the vicinity of the ozone hole, a 6% to 12% decrease in productivity has been noted during the 10 to 12 weeks of the antarctic spring. Averaged annually, this comes to about a 2% decrease. Although this decrease is relatively small, the overall implications for ocean ecology are unknown.

[ Humans ] [ Animal Life ] [ Plant Life ]
[ Glossary ] [ Related Links ] [ PBL Model

[ Home ] [ Teacher Pages ] [ Modules & Activities ]

Button that takes you back to UV Menace's main page.


HTML code by Chris Kreger
Maintained by ETE Team
Last updated April 28, 2005

Some images © 2004 www.clipart.com

Privacy Statement and Copyright © 1997-2004 by Wheeling Jesuit University/NASA-supported Classroom of the Future. All rights reserved.

Center for Educational Technologies, Circuit Board/Apple graphic logo, and COTF Classroom of the Future logo are registered trademarks of Wheeling Jesuit University.