milk is cold. an example of how it affects coffee is this:
you have hot water. put an ice cube in that. that's about the same rate as milk and coffee.
No. Coffee increases your heart rate because it contains caffeine, a stimulant. The milk has no effect.
the color of an object will affect the rate of cooling e.g black objects cool down faster than shiny objects, the temperature around the object will also affect the rate of cooling, if the surrounding is cold, a hot object will cool faster than when the surrounding is hot.
in the rain.
fast cooling rate forms smaller crystals eg Andesiteslow cooling rate forms large crystals eg.Pegmatite
Yes. Other things being equal, the cooling rate should be more or less proportional to the surface area.
The rate at which the rock cool from the liquid magma determines their texture
Increased surface area increases cooling. Cooling occurs by convection of air above the soup and water vapour loss.
The length of time the magma had to cool
The slower the rate of cooling the larger the size of the crystals that can develop.