Discussion of holes in the stratospheric ozone layer usually revolves around investigations of the thickness of the layer near the South Pole. This online activity allows users to study the thickness of the ozone layer...
High levels of ultraviolet light can be harmful to many biological systems, as this higher energy radiation has a mutagenic effect on plant and animal cells. This activity studies the relationship between the amount of...
This exercise is intended to reinforce the importance of Earth's atmosphere to living organisms. Topics include our bodies' interactions with the atmosphere; its composition and structure; and natural changes in the...
This exercise, from the Environmental Science Activities for the 21st Century Project, is designed to introduce students to the idea that human activities can alter the chemistry or gaseous composition of the atmosphere...
The transport and transformation of substances in the environment are known collectively as biogeochemical cycles. These global cycles involve the circulation of elements and nutrients that sustain both the biological...
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