To ensure proper protection for food during storage the bottom shelf should be at least 3 inches - 3 feet above the ground. This is to protect the food from pests and other organisms that may cause disease and health-problems to people who are going to consume such produce. It is a common practice done in the past and have evolved in the process of manufacturing these days.
I think our should use the bycical therapy
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Personal Safety us an individual's ability to go about their everyday life free from the threat or fear of psychological, emotional, or physical harm from others.
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I would say C, but if not then definitely D. Because energy is transferred through the environment or could be said as flows.