CBSE Class 8 Answered

(i) Some fungi reproduce by the spore formation. When these spores settle on food items such as dry fruits; results in the growth of fungus which spoils the dry fruits. Hence, to avoid the entry of such spores, the dry fruits are sold in sealed, airtight packets.

(ii) Action of microorganisms on food spoils the food. If such spoiled food is consumed, it may lead to food poisoning. When bacteria and fungi come in contact with food, they start decomposition activities which results in release of certain chemical toxins which contaminate the food. consumption of spolit food may cause serious illness and food poisoning. Hence, to avoid such instances, we preserve food properly.