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Why should organic foods be preferred ov...

Why should organic foods be preferred over conventional foods ?

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The conventional foods are raised using chemical fertilizers and chemical pesticides. These agrochemicals are often toxic, xenobiotic (human made) and nonbiodegradable. These agrochemicals pass into conventional foods in small traces. Repeated use of conventional foods increases the concentrations of agrochemicals in our bodies. Ultimately they become toxic and cause a number of ailments (e.g., cancers) and harms can occur to us or our pets. By rains and floods, chemical fertilizers are washed out from crop fields and contaminate and pollute our water bodies such as ground water and surface water such as ponds, lakes ecological accidents such as depletion of oxygen in water and death of aquatic life such as fishes.
On the other hand, organic foods are free from any traces of agrochemicals as they are raised by using manures, biofertilizers (e.g., Nitrogen fixing crops and cyanobacteria), biopesticides (neem products) and biological control. Being nontoxic, organic foods should be preferred over conventional foods. Manure used in raising organic foods is environmentally clean method of disposing off and recycling organic wastes.
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LAKHMIR SINGH & MANJIT KAUR-IMPROVEMENTS IN FOOD RESOURCES -VERY SHORT ANSWER QUESTIONS
  1. Why should organic foods be preferred over conventional foods ?

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  2. Mention the crop whose production has increased by blue revolution and...

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  3. What are plant nutrients ?

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  4. Name the three most important mineral elements required for plant grow...

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  5. What are the micronutrients required by the plants ?

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  6. Name any two macronutrients required by plants.

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  7. Which one is nutrient specific-fertilizer or manure ?

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  8. Which is the oldest method of crop improvement ?

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  9. Name one common disease of paddy.

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  10. Give an example of biological weed control.

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  11. Give one example of natural insecticide.

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  12. What are weeds ?

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  13. Write down two harmful effects of biotic factors on food grains.

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  14. What percent of moisture should be present in the food grains at the t...

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  15. Give one example of solid and one of liquid fumigant.

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  16. Which method is most effective for destroying insects in stored grains...

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  17. How the food grains should be dried on commerical basis ?

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  18. What is feed ?

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  19. Name one (a) Leguminous green fodder, (b) Non-green dry fodder.

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  20. Name one high yielding breed of cow and one of buffalo respectively.

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  21. What are fat content in milk of: (a) Murrah, (b) Surti ?

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