Practice Question

In Australia sugar cane is burnt before harvesting. This gets rid of dangerous snakes and also the dry parts of the plant which contains little sugar.
"Doesn't cane burning harm the environment by releasing carbon dioxide (a 'greenhouse gas'" into the atmosphere?" 
the farmer said no. What reasons could the farmer give to support this answer?   


He can argue that the sugar can is just a sink of carbon dioxide and burning them is just returning the carbon dioxide back to it. 

objective 14.3

The structure and composition of the atmosphere 

- Oxygen, Carbon Dioxide and Water vapour in the air

In Class we: 
- Learned the composition of atmosphere 

- Learned the structure of the atmosphere

Reference to the book: pages 118 and 119

Other Resources for this topic: 
http://teachertech.rice.edu/Participants/louviere/struct.html
http://csep10.phys.utk.edu/astr161/lect/earth/atmosphere.html