13. Why it is beneficial to plant shrubs are hedges (fence)?
14. Why are petals of flower brightly coloured?
15. Can a plant be without root? If yes mention some such plants.
16. Write two points of difference between tap root and fibrous roots.
17. Why are leaves of few plants modified into tendrils? Give examples.
18. Can you find a plant in your house or in your neighborhood which has a long but week stem? Write its name. In which category would you classify it.
