From its beginning, the main features of the metric system were the standard set of interrelated base units and a standard set of prefixes in powers of ten. These base units are used to derive larger and smaller units that could replace a huge number of other units of measure in existence.
There are many vitamins present in oranges. Photo Credit Medioimages/Photodisc/Photodisc/Getty Images. Oranges are well known for their high concentration of vitamin C, but the citrus fruit also contains many other vitamins and nutrients. Oranges also contain vitamin A, many of the B vitamins, and vitamin E, making them a regular part of a healthy and balanced diet. Vitamin A is an important nutrient for vision, and for healthy skin.
Oranges are one of the most recognized citrus fruits having a healthy dose of Vitamin C. One medium sized orange contains 70 mg of Vitamin C and 62 calories. Oranges are preferred in their juice form, as they contain 61 to 93 mg of Vitamin C and 80 calories. This is one of our favourite Vitamin C foods.hile plants are generally a good source of Vitamin C, the amount of vitamin C in it depends on the origin, variety, soil and climatic conditions where the plant was grown. Another of the Vitamin sources are animals. They usually synthesize their own Vitamin C. Vitamin C is highly concentrated in the liver part.