Question

Fruit, meat and milk are preserved at room temperature by the process of
(A) Pasteurization
(B) Fridge
(C) Dehydration
(D) Vernalisation

Answer 1

The organic products are perishable in nature. This perishable nature of the products spoils the quality of the food products and deteriorates them. Hence in order to preserve the quality of the food products, the preservation technique is followed.

Complete answer:
The preservation of the food products employs the alteration in the temperature of the surrounding air of the food products, changes in the pressure, keen storage techniques, reduction in the moisture of the food samples etc. The process of pasteurization, refrigeration and the dehydration are involved in the preservation mechanism of the food products. Pasteurization is the technique in which the food products, especially milk, are treated with the high heating and the immediate cooling to kill the pathogens in the product.
Refrigeration is reducing the temperature of the food products to slow down the perishability. Dehydration is the old method of preservation in which the moisture in the food products are removed by the process of drying and hence the food is preserved at the room temperature itself. Hence fruit, milk and meat are maintained at room temperature by the dehydration process. Vernalisation is the separate topic which deals with the inducing of the process of flowering especially in the flowering plants. It is accomplished by maintaining it in the cold temperature for a long time.

Hence the correct answer is option(C)
Note: The growth of the microorganisms is greater when there is more moisture. The microorganisms take part in perishing the food actively when the water content is more. Thus the dehydration process points in removing the moisture in the food, to retard the action of microorganisms