Suppose you are examining a cross section of in young stem: How would you ascertain whether It is a dicot stem or a monocot. stem? Give two reasons.

How would you distinguish monocots from dicots?

If you replace the copper wire AB with a Nichrome wire of same length and area of cross section What change would you notice in the reading on the device Q ? Why ?

You are now familiar with different types of solutions. Unsaturated and supersaturated solutions of copper sulphate are prepared in separate beakers and a crystal of copper sulphate is dipped into each one of them. What would be the observation after a day? Give reasons.