Speech On Pollution

The Hot topic of the past decade was pollution, wherever I went /whatever I heard was all about pollution. People spoke lot and lot about pollution what are the causes, health hazards, its effects on earth atmosphere equilibrium and to all ecosystems, preventive and precautious measures. That decade is over and a new era has begun where people talk about how has become poison. There is no need of any specific poison to make the food poisonous, what I 'm saying is the actual food which we are eating is poison. Don 't be terrified now itself, I just started.
Eating fresh fruits and vegetables are good for health; this is what we learnt from childhood. We think that fruits and vegetables which we are buying today are fresh. But are they really fresh??? The place of cultivation of these fresh fruits and veggies or what we call them as fresh is not very near to our place. In this rapidly developing technology decade, no agricultural land is seen near any city. They are far away from us. After the crop is fully grown, cultivation process itself takes time. Storage, transportation, distribution to various markets will take a minimum of three days if the agricultural land is nearer. Even after three days it looks fresher as if it has been cultivated few hours before. Have you ever wondered how they are so fresh even after a week?
What is shelf –life

Shelf life means the time period of raw food items in storage and in the market before get purchased. The appearance and texture of