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5. The concentration of their language Testing for vitamin C levels in several types of orange can be another favorite science task for many scholars. Thanks to the limited available references on vitamin C levels in citrus juices and just how it degrades as time passes , this website attempt to deliver some info on this issue to assist students find additional references because of their science projects. 9. Their emotional appeal Those that support animal testing point out that is often a necessary practice. They mention that firms that depend upon animal testing do use humane ways to feed, house and care for the animals. Supporters also are convinced that choices to animal testing aren't as far reaching, lacking a chance to figure out how cosmetic products affect living tissue and organs.