The given graphs/data I, II, III, and IV represent general trends observed for different physisorption and chemisorption processes under mild conditions of temperature and pressure. Which of the following choice(s) about I, II, III, and IV is (are) correct?

Graphs I and III represent physisorption because in physisorption, the amount of adsorption decreases with the increase in the temperature and increases with the increase of pressure. Graph II represents chemisorption because in chemisorption, the amount of adsorption increases with the increase in temperature.