Oxygen Cycle

Stage 5,6

The atmosphere contains about 21 percent oxygen. Organisms inhale oxygen and exhale carbon dioxide through the breathing process atmospheric oxygen. In the presence of sunlight and chloroplast, plants absorb carbon dioxide from the atmosphere through photosynthesis, and use carbon dioxide and water reacts with sugar.

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Smart Stone Technology

Level 2, 63 Dixon Street

Haymarket NSW 2000

 Christmas Break 

Office will be closed from 19th December 2020 to 3rd January 2021 (inclusive). 

During the break, you can contact Smart Stone via our email:



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