Which of these shows a reversible change and why? 4. What are the main functions of leaves? 5. Name the method by which we can separate seeds and pulp from the fruit juice? 6. Shalini sees an uprooted pea plant. She notices some swellings on the roots called root nodules. a) What do these root nodules contain? b) What does the relation between the roots of leguminous plants and bacteria teach us? 7. How is a shadow formed? What are the characteristics of a shadow? 8. What are the differences between biotic components and abiotic components?100 What is meant by reflection of light? What type of objects reflect more light? 9. How do lions and deer adapt themselves to live in a forest habitat? 10. Read the function of parts of a plant given below. ​