Question 11 Mark$.........$ upon heating or burning cause many health problems.AnswerPlasticView full question & answer→
Question 21 MarkBy $.........$ process, a large amount of waste paper is turned into new paper and can be reused.AnswerrecyclingView full question & answer→
Question 31 MarkRedworms do not survive in very $.........$ or very $.........$ surroundings.Answerhot, coldView full question & answer→
Question 41 MarkThe method of preparing compost with the help of redworms is called $.........$AnswervermicompostingView full question & answer→
Question 51 Mark$.........$ coloured dustbin is used for collecting recyclable materials.AnswerBlueView full question & answer→
Question 61 MarkThe wastes that rots completely when buried in the soil is disposed in $.........$ coloured dustbin.AnswergreenView full question & answer→
Question 71 MarkThe rotting and conversion of some materials into manure is called$.........$AnswercompostingView full question & answer→
Question 81 MarkSafai karamcharts collect the garbage in trucks and take it to a low lying open area. These open areas are called $.........$AnswerLandfillView full question & answer→