Steps to prepare for exams- aise padhoge toh karoge top

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List the steps of preparation of temporary mount of a leaf peel to observe stomata.

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A certain person nicknamed "Raju" encountered an automatic staircase (i.e. escalator) at a shopping complex, which was moving upward at a constant rate. Just for the fun of it he decided to walk up this escalator at the rate of one step a second Twenty steps brings him to the top Next day he goes up at two steps a second and reaches the top in 32 steps How many steps are there in the escalator?