How do you get a prion disease?

Correct Answer: B

Rationale: The correct answer is B because prion diseases are caused by abnormal proteins called prions that can infect the brain. Eating the brain of an infected animal can introduce these prions into your body, leading to prion disease. Choice A is incorrect because prion diseases are not transmitted through touch alone. Choice C is incorrect because simply eating any brain does not guarantee infection with prions. Choice D is incorrect because prion diseases are not solely transmitted through cattle feed, but rather through direct consumption of infected brain tissue.

Correct Answer: B

Rationale: The correct answer is B: Methane. Landfills produce methane as a byproduct of the decomposition of organic waste in an anaerobic environment. Methane is a potent greenhouse gas that contributes to climate change. Ozone (choice A) is not produced by landfills, but is a secondary pollutant formed by the reaction of sunlight with pollutants like NOx and VOCs. Carbon dioxide (choice C) is also emitted from landfills, but methane has a much higher global warming potential. Polyaromatic hydrocarbons (PAHs) (choice D) may be present in landfill leachate but are not the primary pollutant produced by landfills.

Correct Answer: D

Rationale: The correct answer is D: Asthma. Asthma is the most common occupational respiratory disease due to exposure to various triggers in the workplace. It is characterized by inflammation and narrowing of the airways, leading to symptoms like wheezing and shortness of breath. Emphysema (A) and Chronic Obstructive Pulmonary Disorder (B) are typically caused by long-term exposure to cigarette smoke, not necessarily occupational factors. Lung cancer (C) is often associated with smoking or exposure to carcinogens, not specifically related to occupation. Asthma is the most common occupational respiratory disease due to exposure to triggers like dust, chemicals, or fumes in the work environment.

Correct Answer: B

Rationale: The correct answer is B because referring to unintentional injuries as "accidents" may imply that they were unavoidable or could not have been prevented. By not using the term "accidents," it emphasizes the importance of preventive measures and encourages a proactive approach to safety. Choice A is incorrect as fault may still exist in unintentional injuries. Choice C is incorrect, as accidents, by definition, are not intentional. Choice D is incorrect as legal precedent does not dictate the terminology used for unintentional injuries.

Correct Answer: B

Rationale: The correct answer is B: The external cause of the injury. The International Classification of Injury categorizes injury data based on the external cause of the injury, such as falls, car accidents, or sports injuries. This classification system helps identify trends, risk factors, and prevention strategies. Choice A is incorrect because the classification is not solely based on whether the injury causes death. Choice C is incorrect as it does not focus on individual risk but rather on the external cause. Choice D is incorrect as job category is not the primary factor in organizing injury data.