carbon dioxide ice plant
121Paleozoic — era 542   251 million years ago Key events in the Paleozoic view • edit …
122Urea — Urea …
123Sucrose — Sucrose …
124Azolla event — The Azolla event occurred in the middle Eocene period,citation author = Henk Brinkhuis, Stefan Schouten; year = 2006 title = Episodic fresh surface waters in the Eocene Arctic Ocean journal = Nature volume = 441 issue = 7093 pages = 606–609 doi …
125Issues relating to biofuels — There are a number of issues relating to biofuels.Biofuels are proposed as having such benefits as: reduction of greenhouse gas emissions, reduction of fossil fuel use, increased national energy security, increased rural development and a… …
126metallurgy — metallurgic, metallurgical, adj. metallurgically, adv. metallurgist /met l err jist/ or, esp. Brit., /meuh tal euhr jist/, n. /met l err jee/ or, esp. Brit., /meuh tal euhr jee/, n. 1. the technique or science of working or heating metals so as… …
127soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …
128Earth — This article is about the planet. For other uses, see Earth (disambiguation). Earth   …
