You can tell firstly about the recycling that Recycling is widely assumed to be environmentally beneficial, although collecting, sorting and processing materials does give rise to environmental impacts and energy use.then you can say about its impact ..The elements of household waste most commonly collected for recycling are garden waste for composting the paper and third glass (impure glass) . Metal cans make up only 1% by weight of the material collected for recycling, but we should not waste them and offers them high energy and material savings
Paper % of house hold waste is 18 and its energy is 28-70% ..
Glass % of house hold waste is 7 and its energy is 18% less..it also saves 1.2 % raw material..
Plastic % of house hold waste is 7 and its energy is up to 66%.. .it also saves 1.8 % raw material..
hope this will help you can get some points from this
pleasee mark it as best