Food safety: toxicity and hazard

Correct answer: B. Because it can reduce nutrition quality and safety

Explanation: Food adulteration means adding inferior, unwanted or harmful substances, or removing valuable components from food. It can reduce nutritional quality, introduce toxins or allergens, and cause short- or long-term illness. Purchasing reliable products, checking labels and following food-safety standards help reduce this risk.

Correct answer: B. When the adulterant is toxic or unsafe

Explanation: Food adulteration becomes a serious health hazard when an added or substituted substance is toxic, contaminated, allergenic, or otherwise unsafe for consumption. It may cause acute poisoning, digestive illness, organ damage, or long-term health effects depending on the substance and exposure. Taste, packaging, or carrying food home does not determine toxicity.

Correct answer: A. Buying food from reliable sources and checking quality

Explanation: Food adulteration means that an inferior, harmful, or unauthorized substance may be added to food or a valuable component may be removed. The safest practice is to buy from reliable sellers, inspect packaging, check the label, seal, expiry date, and quality marks, and avoid suspicious products. Therefore option A is correct.

Correct answer: B. Because the food may be unsafe to consume

Explanation: The expiry date marks the end of the period for which the manufacturer assures the product’s safety or quality under stated storage conditions. After that date, harmful microbial growth, chemical deterioration, or loss of quality may occur. Normal colour or smell cannot guarantee safety, so option B is correct.