Exposure to ________ accelerates the degradation of plastics?

The decrease in the atomic number is not observed in case of________?

In the absorption of ammonia in water, the main resistance to absorption is by the ________ phase?

Differential method for analysing the kinetic data is used ________?

Evaporative cooling process employs a combination of cooling and humidification in which the________?

Sphericity for a non-spherical particle is given by (where, V and S are volume and surface area respectively of one particle. and, D = equivalent diameter of particle)?