Which physical quantities are to be altered for liquefying gases?

It is a hot summer day,Priyanshi and Ali are wearing cotton and nylon clothes respectively. Who do you think would be more comfortable and why?

$(a)$ State one similarity and one difference between evaporation and boiling.
$(b)$ Account for the following:
$(i)$ We wear cotton clothes in summer.
$(ii)$ $A$ wet handkerchief is placed on the forehead of a person suffering from high fever.
$(iii)$ Wet clothes dry slowly during the rainy season.

Why are we able to sip hot tea or milk faster from a saucer rather than a cup?

What is dry ice? What happens when the pressure under which it is stored is decreased to $1$ atmosphere?

$(a)$ What temperature in Kelvin scale is equal to $50^{\circ} C$?
$(b)$ Describe an activity to show that the rate of evaporation increases with surface area.