Class 7: Science Chapter 17 solutions. Complete Class 7 Science Chapter 17 Notes. Lakhmir Singh Manjit Kaur Solutions for Class 8 Science : Chapter 17- Forests: Our Lifeline Lakhmir Singh Manjit Kaur 7th Science Chapter 17, Class 7 Science Chapter 17 solutions (1) Ans:- Decomposers. (2) Ans:- Crown. (3) Ans:- Two trees are Sal, Mahogany and Two animals are Tiger, Wild Cat. (4) Ans:- Canopy. (5) Ans:- The topmost layer […]