A birthmark is generally a:

macule.

excoriation.

pustule.

bullae.

macule

Explanation:

its aa flat round areausually distingurished from its surroundung skin by its changed in color. smaller than 1cm  am small hemorrhage spot.

the ima (higher than 1m) will be greater than the ima with the height of 1m.

= initial pressure

= final pressure = 2

= initial volume

= final volume = /4

= initial temperature = 20 c = 20 + 273 = 293 k

= final temperature = ?

using the equation