The value of land in urban area is very high compared to nearby semi-urban and rural areas, so houses in the city have very little or no surrounding area at all for doing any farming. Food consumed in the city comes generally from vegetable farmers in nearby area, as well as from farmers in the neighbouring states. The vegetables which are brought o markets, mainly from other states, contains large amound of harmfull substances like pesticides used during farming. These chemicals create several health problems to city people. But they are not left with any other choice, but to buy these vegetables from markets. Not only lack of space is a problem for people in urban area, but the lack of time to spare is also a problem for growing vegetables in their roof tops. They will be getting only one day in an entire week as holiday. The atmospheric pollution is also a barrier for growing vegetable in busy urban area.
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