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the dramatic increases in crop production around the world from the second half of the twentieth...
a structure made mostly of glass, in which temperature and humidity can be controlled for the...
the trapping of the sun's heat energy by certain gases in the atmosphere, e.g. carbon dioxide...
atmospheric gases, especially carbon dioxide, methane, nitrous oxide, ozone and water vapour,...
outputs of gases from industrial action that cause the build up of heat in the atmosphere.
carbon dioxide and other gases that absorb heat and contribute to the greenhouse effect
waste water from sinks, washing machines, dishwashers, showers and baths, which can be used for...
a street pattern in which roads cross at right angles