Respiration experiment, illustration. Microbes in the fresh soil will produce carbon dioxide (CO2) as a by-product of respiration. When limewater is exposed to CO2 it turns cloudy. The sterilised soil doesnâ??t contain any microbes and so the limewater remains clear. | |
Lizenzart: | Lizenzfrei |
Credit: | Science Photo Library / ALI DAMOUH |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |