1. (i) What is the colour of dry cobalt chloride paper?   2. (ii) Is the experimental leaf a monocot or a dicot? Give a reason to support your answer.   3. (iii) Why are glass slides placed over the dry cobalt chloride papers?   4. (iv) After about half an hour what change, if any, would you expect to find in the cobalt chloride paper placed on the dorsal and ventral sides of the leaf ? Give a reason to support your answer.   5. (v) Define the term 'transpiration.'