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Politics : Evolution -- Ignore unavailable to you. Want to Upgrade?


To: Greg or e who wrote (36210)5/13/2013 5:07:00 AM
From: Solon  Read Replies (1) | Respond to of 69300
 
"Under too high CO2 level, necrosis spots (dead vegetal tissue, Figure 2) appear on leaves that may also roll into themselves. pottery These dead tissue spots are a great food for bacteria and molds."

So what is the safe level in ppm for plants? How about, for humans? What is the safe temperature for a sodium chloride glaze to be created with children in the room?