7A
Robin has some tips and suggestions for making your own “Biosphere” – “Biologists call the Earth’s environment and all organisms the Earth’s biosphere. But biosphere is also the name of a man-made and sealed environment, which simulates the earth’s biosphere. This could for example be in a bottle, or a greenhouse. Another (maybe more correct) name for such an artificial biosphere is ecosphere, or closed ecosystem.” [via] – Link.