fresh water, renewable sources of energy, emissions, sewerage system, the Middle Ages, polluted, abundant - when it's enough food, water and resources, sprawling - for example a city that is constantly growing, shortage - when something is becoming less, not enough for everybody, slums, essential to - very important, necessary, rapid growth - when something grows fast, take ... for granted - when you don't appreciate things you have, on a large scale - when something has a global, huge significance; some big changes that affect a lot of people, sustainable - ecological, made of natural materials, greenhouse gases - gases produced by industry, accomodate - provide people with a place for living, increase - to grow, crucial - important, necessary, dreadful conditions - terrible circumstances, sophisticated - something is very complex, consisting of many parts, difficult to understand, very developed, congested - full of cars and people, developing - something that is not modern enough, not evolved, overcrowded - there are a lot of people, rural areas - village, countryside, cosmopolitan - a city where live a lot of nationalities, undergo - have some changes, processes of effects from something,

Environment 3

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