Direction: In the following questions, you have three passages with 10 questions in each passage. Read the passages carefully and choose the best answer to each question, out of the four alternatives.
In his book about nutritional medicine, Dr. Ray D. Strand points out that our food industry, due to special transportation and storage techniques, has been able to make a wide variety of fruits and vegetables available nationwide throughout the year. The variety is good. But these are made available at a sacrifice. Green harvesting means picking fruits and vegetables before they mature. Shipping food over long distances requires cold storage and other preservation methods, which allow for depletion of vital nutrients. Our food is also highly processed. For example, the refinement process of our flour to create white bread removes more than twenty-three essential nutrients, magnesium being one of the most important. Our food industry then puts about eight of these nutrients back into our bread and calls it ‘‘enriched’’.