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.
Beta-carotene is the plant pigment that makes carrots orange. A versatile antioxidant that the human body can use to make vitamin A, beta-carotene is both an important nutrient and a source of deep orange color for apple, apricot, mango, papaya, peach, and mixed vegetable juices.In Europe, additional beta-carotene is sometimes labeled E160a.eta-carotene is a reddish-orange pigment abundant in carrots and in orange-colored fruits. Plants make beta-carotene and related pigments to protect themselves from excessive sunlight. Beta-carotene absorbs all the wavelengths of visible light except its shade of orange.