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CU Earth Science
Module 7
| Question | Answer |
|---|---|
| Weather | a description of the atmosphere at a particular place and time |
| Climate | is the average state of the atmosphere over a region or interval of time |
| What treatise did Aristotle write in 340 BC? | Meteorology from the Greek word ta meteora or "things in heaven above" about the atmosphere |
| Meteorology has become more quantitative and a regularly studied science... | Since Galileo in the 1600s |
| What three gases is the atmosphere primarily composed of? | Nitrogen (78%), Oxygen (21%), and Argon, Carbon Dioxide, and trace gases (1%) Assuming air is dry with no pollution |
| True or False: Nitrogen is relatively unreactive | True |
| What gas is a safe medium in which other chemical reactions can take place? | Nitrogen |
| What are the conditions for reactions involving nitrogen? | At high temperatures or within living organisms |
| Lightning and combustion in ____ ____ are hot enough to generate ____ ____ | Automobile engines, nitrogen oxides |
| ___ is generated by nitrogen-fixing bacteria living in the ___ __ of some ___ | Ammonia, root nodules, plants |
| How is nitrogen converted back into its gaseous form? | Through the decomposition of organic material |