Which of the following activity refers to removal germs and other foreign bodies?

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Statement 1: Just like the vapor pressure on an individual component is higher than when it is in bulk, the water activity is low when in bulk. Statement 2: Water activity is directly proportional to the surface tension and molecular weight of water and inversely proportional to density of water.

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Statement 1: Foaming a liquid exposes enormous surface area for quick moisture removal and hence permits low drying temperatures. Statement 2: During the constant drying time, the rate is determined by the rate at which water at the centre of the food diffuses outside.

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Statement 1: Plastic films and other foils might get damaged due to irradiation. Statement 2: By increasing the radiation dose by a two-fold, the resistance of certain organisms to irradiation increases.

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