Chemical hazards are defined as: a. parasites in food b. poisonous substances that occur naturally or are accidentally added during food handling c. germs or pathogens entering food d. foreign objects falling into food

B. Poisonous substances that occur naturally or are accidentally added during food handling.

Explanation:

A chemical hazard is defined as the harmful substance that causes loss or harm to the society or community at large and it can be man-made or naturally induced. Such as the hazard which is found of the food can lead to food poisoning or unnatural death. If consumed accidentally or by naturally occurring or added by the process of food handling can cause the loss of digestive power and may lead to food benign prey to the foreign substances that are toxic or untreated.

D. most models represent a real world object in a simpler way