The answer is chemical contamination. This is because the paint chip that falls into the food contains chemicals that are harmful to the body such as lead that negatively affects the nervous system when consumed. Better handling of the food should, therefore, be observed by ensuring a greater distance between the place where the food is being handled and where the paint is.
Answer:
Professor James is conducting a systematic review.
Explanation:
A systematic review is an evaluative assessment of all prior studies that were conducted to evaluate an issue. In a systematic review, a researcher locates, compiles and evaluates the literaturature pertaining a specific topic using key criteria. This review which normally includes a summary of the fidings of the studies collected can also incorporate a meta-analysis, which is a quantitative data pool.
Her sexual behavior, smoking, and drinking are controllable risk factors.
She cannot control her age nor can she change the heredity she has.
The biggest role would be the Brain.