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Reply	Michael says: If what Michael Marshall is saying is true then what we're talking about is the natural metabolism of the microbes through the Kalvin cycle and that brings up an interesting question... In my AP Biology class we just performed a lab in which we measured the amount of CO2 produced by germinating peas (not undergoing photosynthesis) and saw how temperature effected their CO2 production. I wonder if you could match the larger and smaller rings of gas in the ice to specific days... smaller rings durring colder days and larger to warmer days.  (no votes) Tags: planet earth, plants.
	posted on 2008-11-01 16:19:00 | Report abuse

Reply	Le Vieux Canard says: Just thought to search "frozen bubbles" today - many years ago I saw bubbles frozen in a shallow pond. The temp had dropped precipitously and the pond appeared frozen to the bottom - 18" to 2' deep. Fern-like aquatic plants on the bottom sported tiny bubbles at each leaflet tip, and shining columns rose gracefully from the bottom. These bubbles were evenly spaced, not stacked tightly - and they appeared spherical, not flattened. All this viewed through a surface smooth and clear as plate glass. How did this happen?! One of the great memories of this lifetime...  (no votes) Tags: planet earth, plants.
	posted on 2009-02-20 14:32:00 | Report abuse

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