Liveability - a place that is suitable to live in, Sustainability - the ability to be maintained at a certain rate or level, Accessibility - the quality of being easy to obtain or use, Cost - an amount that has to be paid or spent to buy or obtain something, Solar - relating to or denoting energy derived from the sun's rays, Coal  - a combustible black or dark brown rock consisting chiefly of carbonized plant matter, found mainly in underground seams and used as fuel, Energy - power derived from the utilization of physical or chemical resources, especially to provide light and heat or to work machines, Factor - a circumstance, fact, or influence that contributes to a result., Justify - show or prove to be right or reasonable, Summarise - give a brief statement of the main points of (something),

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