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E Temperature changes that may be caused by individual greenhouse gases
E Droughts famines epidemics etc
5 other sections not shown
acid Africa amino acids animals Appendix Item aquatic atmosphere atomic number bacteria biological birds bisexual blood body calcium carbon dioxide carbon monoxide caused cells Celsius chemical chlorine chlorophyll chromosomes colour compounds concentration countries crops dicotyledonous dicotyledonous plant family disease earth effect electricity electrons element emission endosperm energy environment environmental enzyme fertilization ﬁrst ﬁsh ﬂora ﬂow ﬂowers forest fruits fuel gases gene genera genetic genus glands habitat heat herbivorous hormone human hydrocarbons hydrogen India industrial insects Island kills land layer liquid living Lord Howe Island mammals mass materials methane million molecules monocotyledonous natural nitrogen nuclear organisms oxides oxygen ozone parasite particles photosynthesis pollution pressure production protein radiation radioactive reaction regions seed soil species speciﬁc substance subtropical sulphur surface temperature tissue toxic tree tropical unit usually vegetation wastes wave-length xerophytes