Concept:Arrange sentence parts in a logical sequence to form a coherent paragraph.Explanation:Sentence 1 introduces recycling’s benefit. P directly follows, stating that recycling reduces waste in landfills. R adds another benefit: cutting pollution from burning waste. S then presents a contrast with low awareness, leading to Q as a specific example (saving trees and water). Finally, 6 suggests public campaigns to improve participation. The logical order is P, R, S, Q — that is PRSQ.Answer:Option D: PRSQ