Which phenomenon occurs during the following changes? (i) Formation of clouds (ii) Drying of wet clothes, (iii) wax melts in the sun (iv) Size of napthalene balls decreases.
(i) condensation :- water droplets condenses upon dust particles to form clouds. (ii) evaporation :- water in the cloths evaporates to dry up the cloths. (iii) melting . (iv) sublimation :- the naphthalene balls changes from solid state directly to gaseous state , this process is called sublimation.
