(1) How would you check the presence of starch in leaves?(2) Nehabhabhi takes two types of fiber, natural and synthetic. She does not knowwhich one is natural fiber and which is synthetic fiber. Which activity you will suggestto identify the fibers?(3) You are given three solutions A, B and C acid, base and neutral respectively. It isnot possible to identify them just by looking how will you identify the type of solution.Q:- 5 Do as directed. (10)(1) Why there are holes on hoardings as well as clothes or plastic banners ofadvertisements hanged freely?(2) Sandy soil is not suitable for cultivation. Give reason.(3) What kind of clothes would you like to wear in the summer season? Why?(4) How do elephants adapt to the equatorial rainforest region? Explain.(5) A monkey can easily live on tree. Give reason.Q:- 6 Do as directed.(1) Blue coloured solution is given in the figure. Which solution is it? What causes thecolour change in this solution. Explain.(03)(2) A flag near the check post furls in the direction of sea. Is it midnight or afternoon?Why?(03)(3) Describe the experiment showing the conduction of heat in solid substance withdiagram.(04)Q:- 7 Complete the equation (04)1.SunlightCarbon dioxide + Water ___________ + ____________Chlorophyll2. Acid + Base _______________ + _____________Blue colour solutionIron nailgreen colour solutionRadish iron nail3Q:- 8 While doing the experiment of percolation in your field you found that 400ml water takes10 minutes time then what is the percolation rate of the land?(05)Q:- 9 Draw the diagram of the digestive system of ruminating animal and write down thenames of any two organs.(05)Q:- 10 Do as directed.(1) How will you make China rose (jasudpatra) using materials found around you? (03)(2)How will you make anemometer using materials found around you? How will you use it? (03)Q:- 11 Do as directed. (10)(1) Explain the usefulness of chemical changes in everyday life.(2) Which effective safety measures will you take during cyclone