Environment & Ecology PYQs

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1. Prelims 1995Q124Biodiversity & Species

   The only snake that builds a nest is

   aChain viperbKing CobracKraitdSaw scaled viper
2. Prelims 1995Q128Environmental Pollution

   “The final Agent Orange raid in Vietnam took place in 1970…. areas have begun to bloom again. But 19 years after the war’s end, it seems plain that Agent Orange is killing and maiming human beings, something it never intended to do. The apparent toxic fall-out from those clouds ... is a crop of human miseries including cancers, miscarriages and birth defects — that may persist for decades.” The offensive substance referred to in the above quotation is

   aDDT used as insecticideba complex mixture of herbicides and weedicides used to increase agricultural output in the then South Vietnam under the US aid programmeca complex mixture of DDT and other insecticides used as aerial sprays for protection against malaria and other tropical diseasesddioxin used as defoliants