题型：单选题 难度：★★★★★ 
3.8万热度
before the commercial funeral industry became popular, people used to practise green burials.
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traditional jewish principles regard embalming as an offense to the dead.
at present, compared with the united states, great britain has done a better job in increasing the popularity of green cemeteries.
people under the exposure of formaldehyde every day are more likely to get leukemia and brain cancer.