| The study found that, as temperatures increase, plants absorb less carbon dioxide while microorganisms in the soil release more and more of it. |
| Solvents permitted in the UK for extraction include acetone, hexane, ethyl acetate, ethyl alcohol, and carbon dioxide. |
| Additionally, carbon dioxide and organic acids may be added to the water from the soil, where they form by decay of organic matter. |
| Ethanol was then replaced with amyl acetate in preparation for critical point drying with liquid carbon dioxide. |
| The gases, especially carbon dioxide and methane, absorb the Earth's heat radiation and thus warm the surface, just as a blanket traps body heat. |
| Let your students measure the amount of carbon dioxide they produce through cellular respiration dependent on their bodies' energy. |
