Which type of lingual papillae are weakly developed in humans and lose most of their taste buds by age 2 or 3 years

Asap 1. what happens to particles when a substance gains energy and changes state? 2. what happens to the energy that is lost when water freezes? 3. how does the movement of particles in a stick of butter differ from the movement of particles in a dish of melted butter? 4. as water is cooled, at what temperature do its particles become fixed in place? 5. how do evaporation and boiling differ?