[9급 국가직 영어 2021년 8번]

Urban agriculture (UA) has long been dismissed as a fringe activity that has no place in cities; however, its potential is beginning to ① be realized. In fact, UA is about food self-reliance: it involves ② creating work and is a reaction to food insecurity, particularly for the poor. Contrary to ③ which many believe, UA is found in every city, where it is sometimes hidden, sometimes obvious. If one looks carefully, few spaces in a major city are unused. Valuable vacant land rarely sits idle and is often taken over―either formally, or informally―and made ④ productive.