Importance of this Unit to the Course
This unit provides basic information on oxides of nitrogen and sulfur and ozone in the lower
atmosphere that will be needed for understanding why some but not all chemicals contribute to global
warming, ozone depletion, and acid rain covered in future units.
- To examine the cycling of chemically active trace gases in the
- To understand how reactivity of trace gases relates to their
spatial and temporal distribution.
(You must complete this section before class.)
- Read the summary information.
(Print text for offline revies;
- Take the
Quiz over the summary information. (see your portfolio)
- Review additional reading material (this material is not covered in the
quiz, but offers more ideas for online discussion)
(online / face-to-face)
(See your portfolio for due dates and times)
A major component of the course is participation in the online dialog.
The following types of comments are required:
The following may be used as discussion starters for the online dialog:
- Social Comments
- Knowledge-building Comments
- Ethical Comments
- Unit Problem to Ponder:
If nitrous oxide is the most inert of the atmospheric
nitrogen compunds, why is it in some respects the most dangerous?
- Unit exam questions
from previous years
- Unit discussions from previous years, available from
the current online discussion