What pollutant is produced by landfills?

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: 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.

Correct Answer: A

Rationale: The correct answer is A: job rotation. Job rotation involves periodically shifting employees between different roles to reduce monotony, prevent overuse injuries, and provide variety. This intervention can help improve occupational health and safety by reducing the risk of musculoskeletal disorders, fatigue, and burnout. Skills training (B) focuses on enhancing employees' abilities but may not directly address safety concerns. Workstation redesign (C) aims to optimize ergonomics but may not impact overall safety. Forming a safety committee (D) is important for promoting a safety culture but is not a direct behavioural intervention for improving occupational health and safety.

Correct Answer: C

Rationale: The correct answer is C: Antecedent → Behaviour → Consequence. This model is known as the ABC model of behavior analysis. The antecedent triggers the behavior, which is followed by a consequence. This model is widely used in behavioral programming in the workplace as it helps understand and modify employee behaviors effectively. The antecedent sets the stage for the behavior to occur, the behavior itself is the observable action, and the consequence reinforces or discourages the behavior. Explanation for why the other choices are incorrect: A: Trigger → Behaviour → Reward - This model does not include the consequence element, which is crucial in understanding behavior. B: Trigger → Consequence → Behaviour - The consequence should follow the behavior, not come before it. This model is out of sequence. D: Antecedent → Behaviour → Reward - This model misses the important step of analyzing the consequences of behavior.