*write an expository article developing the statement in italics below.
Food safety has become one of the major worries for mankind. This worry has three major sources: the chemical contamination of agricultural products, the use of additives, preservatives and colourings in a large number of food products and the consumption of ready-made food.
Perhaps the first cause for worry about food safety is the highly intensive mode of farming and agribusiness now prevailing in industrialised countries. This has led big companies to use chemicals (fertilisers and pesticides) to ensure maximum output. As a result, fruits and vegetables are contaminated by chemicals which may prove harmful to our health. The second cause is again related to mass production, and the need to keep products fresh and attractive. Consumer requirements have led manufacturers to introduce colourings, additives and preservatives. Some of them have been suspected of being dangerous while others have definitely been classified as harmful. Finally, fast food and ready-made meals have led people to take undesirable eating habits. More worrying is the fact that the younger generation are the most prone to consume fast food and soft drinks. These eating habitshave caused a large part of the population to become overweight or obese, and to develop diseases like diabetes or high blood pressure. These are due to an excess consumption of animal fat and fried food, as well as sugar and salt.
In conclusion, the conjunction of contaminated agricultural products, processed foods and poor eating habits is indeed a good reason to worry about food safety and to take corrective measures to change or improve our attitudes to eating.