| D002244 |
Carbon |
A nonmetallic element with atomic symbol C, atomic number 6, and atomic weight [12.0096; 12.0116]. It may occur as several different allotropes including DIAMOND; CHARCOAL; and GRAPHITE; and as SOOT from incompletely burned fuel. |
Carbon-12,Vitreous Carbon,Carbon 12,Carbon, Vitreous |
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| D002245 |
Carbon Dioxide |
A colorless, odorless gas that can be formed by the body and is necessary for the respiration cycle of plants and animals. |
Carbonic Anhydride,Anhydride, Carbonic,Dioxide, Carbon |
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| D001272 |
Atmosphere |
The gaseous envelope surrounding a planet or similar body. (From Random House Unabridged Dictionary, 2d ed) |
Atmospheres |
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| D012987 |
Soil |
The unconsolidated mineral or organic matter on the surface of the earth that serves as a natural medium for the growth of land plants. |
Peat,Humus,Soils |
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| D014197 |
Trees |
Woody, usually tall, perennial higher plants (Angiosperms, Gymnosperms, and some Pterophyta) having usually a main stem and numerous branches. |
Tree |
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| D017753 |
Ecosystem |
A functional system which includes the organisms of a natural community together with their environment. (McGraw Hill Dictionary of Scientific and Technical Terms, 4th ed) |
Ecosystems,Biome,Ecologic System,Ecologic Systems,Ecological System,Habitat,Niche, Ecological,System, Ecological,Systems, Ecological,Biomes,Ecological Niche,Ecological Systems,Habitats,System, Ecologic,Systems, Ecologic |
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