Ответ:1. Being eco-friendly means adopting habits and practices that minimize harm to the environment and promote sustainability. It involves being mindful of one's daily activities and making choices that have a positive impact on the planet.

2. There are several things you can do to lead an eco-friendly lifestyle, including:

Reduce, reuse, and recycle: This involves minimizing waste by using products as many times as possible before disposing of them, recycling materials whenever possible, and properly disposing of hazardous waste.

Conserve energy: This involves using energy-efficient appliances, turning off lights and electronics when not in use, and using alternative energy sources such as solar power.

Use sustainable transportation: This involves using public transportation, carpooling, biking, or walking instead of driving alone.

Choose eco-friendly products: This involves choosing products that are made from sustainable materials, contain fewer chemicals, and have minimal impact on the environment.

Support sustainable practices: This involves supporting companies and organizations that prioritize sustainability and environmental protection.

3. There are several sustainable and green cities in the world, but one of the most well-known is Copenhagen, Denmark. Copenhagen has implemented numerous initiatives to reduce its carbon footprint, including investing in public transportation, promoting biking as a means of transportation, and developing a comprehensive recycling program. The city has also set a goal of becoming carbon neutral by 2025 and has made significant progress towards achieving this target. Additionally, Copenhagen has invested heavily in green spaces and has been recognized for its efforts to promote urban biodiversity.

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