Global Systems & Cycles Greenhouse gases like carbon dioxide, water vapour and methane trap heat in the atmosphere, making it possibl e for life, as we know it, to exist. Agr iculture, transport and industrial proces ses are contributing greater amounts of greenhouse gases to the atmosp here, increasing natural rates of warmin g.
GLOBAL SYSTEMS, LIKE THE CARBON AND WATER CYCLES, EXIST IN A DELICATE BALANCE THAT INFLUENCES THE AIR WE BREATHE, THE WATER WE DRINK AND THE MATERIALS WE CONSUME. The water cycle includes the pro cesses of precipitation, in the form of ice, sleet, rain and snow, the movement of water on Earth and its return to the atmosphere. Most life on Earth needs water to survive; to consume and /or as a habitat.
Water cycle Carbon cycle
gases Organisms release and absorb sise. nthe tosy pho or ire as they resp anic As organisms die, they add org y, their nall asio occ le matter to rocks, whi ils. foss as ved ser pre be may remains anic org this Under specific conditions il fuels, matter can be converted to foss bon. car for sink m -ter long ther ano
Evaporation from water surface s and vegetation adds water vapour to the atmosphere.
soil and marine biota Rain, rivers, organic matter from oceans. The ocean our rs ente all add to the carbon that at the seafloor new acts as a sink for carbon, where e are formed. ston lime carbonate rocks such as
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