Name the phase transition in each of the following situations and indicate whether it is exothermic or

Question:

Name the phase transition in each of the following situations and indicate whether it is exothermic or endothermic:
(a) When ice is heated, it turns to water.
(b) Wet clothes dry on a warm summer day
(c) Frost appears on a window on a cold winter day
(d) Droplets of water appear on a cold glass of beer?