Why is the wind coming from the sea cool at the shores?

$A$ heater supplying constant power $P$ watts is switched $ON$ at time $t=0$ to raise the temperature of a liquid kept in a calorimeter of negligible heat capacity. $A$ student records the temperature of the liquid $T(t)$ at equal time intervals. $A$ graph is plotted with $T(t)$ on the $Y$-axis versus $t$ on the $X$-axis. Assume that there is no heat loss to the surroundings during heating. Then,

$50\,g$ of copper is heated to increase its temperature by $10\,^{\circ}C$. If the same quantity of heat is given to $10\,g$ of water,the rise in its temperature is ........ $^{\circ}C$. (Specific heat of copper $= 420\,J\,kg^{-1}\,^{\circ}C^{-1}$,Specific heat of water $= 4200\,J\,kg^{-1}\,^{\circ}C^{-1}$)

The heat required to increase the temperature of a body by $1^{\circ}C$ is called........

If the ratio of the diameters of two spheres made of the same material is $1:2$,what is the ratio of their heat capacities?

Why are the winds coming from the sea cool in summer?