Classify the following into osmosis/diffusion:
Aquatic animals using oxygen dissolved in water during respiration.

A glass tumbler containing hot water is kept in the freezer compartment of a refrigerator (temperature $<$ $\left.0°\mathrm{C}\right).$ If you could measure the temperature of the content of the tumbler, which of the following graphs would correctly represent the change in its temperature as a function of time.

Look at Figure and suggest in which of the vessels $\mathrm{A}, \mathrm{B}, \mathrm{C}$ or $\mathrm{D}$ the rate of evaporation will be highest? Explain.