A.I. Explanation:

Correct answer: ingredients

Explanation: The word 'ingredients' fits grammatically as it refers to essential components necessary for good health, aligning contextually with the list that follows (clean air, safe drinking water, etc.). It indicates that these elements are fundamental to maintaining health, which is the main topic of the sentence.

Meaning: 'Ingredients' means the necessary components or elements that contribute to a particular outcome, in this case, good health.

Wrong options:

• drugs: 'Drugs' refers to substances used for medical treatment, which does not fit the context of essential components for health.
• skills: 'Skills' implies abilities or expertise, which is unrelated to the physical components necessary for health.
• points: 'Points' generally refers to units of measurement or scores, which does not relate to the context of health components.

Correct answer: cope

Explanation: The verb 'cope' is appropriate here as it means to manage or deal effectively with something difficult, which aligns with the context of areas needing assistance to handle the impacts of climate change.

Meaning: 'Cope' means to manage or deal with a challenging situation, particularly in the context of health infrastructure and climate change.

Wrong options:

• complete: 'Complete' suggests finishing something, which does not fit the context of managing challenges.
• form: 'Form' implies creating or establishing something, which is not relevant to the context of dealing with difficulties.
• content: 'Content' refers to being satisfied or pleased, which does not relate to the ability to manage challenges.

Correct answer: contributors

Explanation: The term 'contributors' is suitable as it indicates factors that play a significant role in causing climate change and air pollution, fitting well within the context of the sentence.

Meaning: 'Contributors' means elements or factors that add to a particular outcome, in this case, climate change and pollution.

Wrong options:

• attractors: 'Attractors' suggests something that draws attention or interest, which does not fit the context of causing climate change.
• depressions: 'Depressions' refers to states of low mood or economic downturns, which are unrelated to the context of environmental issues.
• differences: 'Differences' implies variations or distinctions, which does not align with the idea of causing climate change.

Correct answer: burden

Explanation: The word 'burden' is appropriate as it refers to a heavy load or responsibility, which aligns with the context of the negative impacts of air pollution on health.

Meaning: 'Burden' means a heavy load or responsibility that causes stress or difficulty, particularly in relation to health impacts from pollution.

Wrong options:

• risk: 'Risk' refers to the possibility of harm or loss, which does not fit as well as 'burden' in this context.
• cord: 'Cord' is a physical object used for tying or connecting, which is irrelevant to the context of health and pollution.
• rate: 'Rate' refers to a measure or quantity, which does not convey the same meaning as 'burden' in this context.