Meaning: 'Collaborative' means working together with others to achieve a common goal, emphasizing the importance of community involvement in the initiative.

Wrong options:

• individual: 'Individual' implies acting alone, which contradicts the invitation for community participation in the initiative.
• passive: 'Passive' suggests a lack of action or involvement, which is not suitable in the context of actively participating in a tree-planting effort.
• competitive: 'Competitive' indicates rivalry, which is not the intention of this community-focused initiative aimed at cooperation.

Correct answer: vibrant

Explanation: The word 'vibrant' fits contextually as it describes lively and thriving habitats, which aligns with the goal of enhancing biodiversity through the initiative. It also matches the positive sentiment of the overall message.

Meaning: 'Vibrant' means full of energy and life, indicating that the habitats created will be rich and supportive of urban wildlife.

Wrong options:

• hostile: 'Hostile' suggests an unwelcoming environment, which contradicts the aim of creating supportive habitats for wildlife.
• sterile: 'Sterile' implies a lack of life or vitality, which is the opposite of what the initiative seeks to achieve in fostering biodiversity.
• dull: 'Dull' indicates a lack of interest or excitement, which does not reflect the intended outcome of creating lively habitats.

Correct answer: foster

Explanation: The word 'foster' fits grammatically and contextually as it means to encourage or promote growth and development, which is the goal of the initiative in improving community health and wellbeing.

Meaning: 'Foster' means to support or nurture something, in this case, the health and wellbeing of the community through environmental efforts.

Wrong options:

• mitigate: 'Mitigate' means to make less severe, which does not align with the proactive approach of creating a positive impact on health and wellbeing.
• ignore: 'Ignore' suggests neglecting the issue, which is contrary to the initiative's purpose of actively improving community health.
• neglect: 'Neglect' implies a failure to care for something, which is the opposite of the intended action of supporting community health.

Correct answer: liveable

Explanation: The word 'liveable' fits contextually as it describes a place that is suitable for living, aligning with the initiative's goal of enhancing the quality of life in the city.

Meaning: 'Liveable' means providing a good quality of life, indicating that the city will be more pleasant and accommodating for its residents.

Wrong options:

• crowded: 'Crowded' implies a lack of space and comfort, which contradicts the aim of making the city more pleasant to live in.
• polluted: 'Polluted' suggests environmental degradation, which is the opposite of the initiative's goal to improve air quality and greenery.
• noisy: 'Noisy' indicates a disruptive environment, which does not align with the intention of creating a peaceful and pleasant living space.