Minerals are important for maintaining homeostasis which essentially is a big part of what keeps us alive. Minerals are inorganic compounds（lack of carbon atom)‚ which are quite different from other nutrients. The reason is that carbohydrates‚ proteins‚ lipids‚ and vitamins are all organic compounds(contains carbon) . The structure of minerals is very simple‚ usually nothing more than a molecule‚ or molecules. Most of the minerals in a diet come from eating plants and animals or from drinking water
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History of Ganga River The Ganges is one of the major rivers of the Indian subcontinent‚ flowing east through the Gangetic Plain of northern India into Bangladesh. The 2‚510 km (1‚560 mi) river rises in the western Himalayas in the Uttarakhand state of India‚ and drains into the Sunderbans delta in the Bay of Bengal. It has long been considered a holy river by Hindus and worshiped as the goddess Ganga in Hinduism. It has also been important historically: many former provincial or imperial capitals
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CHEMISTRY SAMPLE PAPER - I CLASS - XII Time : Three Hours Max. Marks : 70 General Instructions 1. All questions are compulsory. 2. Question nos. 1 to 8 are very short answer questions and carry 1 mark each. 3. Question nos. 9 to 18 are short answer questions and carry 2 marks each. 4. Question nos. 19 to 27 are also short answer questions and carry 3 marks each 5. Question nos. 28 to 30 are long answer questions and carry 5 marks each 6. Use log tables if necessary‚ use of calculators is
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strontium‚ and plutonium in the soil‚ plants and animals. The soil of Chernobyl was also very polluted with metal-laden soils‚ but they found 2 kind of plants Brassica juncea and Brassica carinata which are the best plants to remove big quantities of chromium‚ lead‚ copper and nickel and some additional products. They also found the perfect plant that can remove 95% of the toxic contaminants from soil and water. The plant is called Helianthus sp‚ and is a development of a sunflower‚ this plant was planted
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other things. Several colloquialisms have derived from these meanings‚ such as “green around the gills”‚ a phrase used to describe a person who looks ill. Several minerals have a green color‚ including the emerald‚ which is colored green by its chromium content. Animals such as frogs‚ lizards‚ and other reptiles and amphibians‚ fish‚ insects‚ and birds‚ appear green because of a mixture of layers of
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(galvanized)‚ Copper‚ and Aluminium. Steel is commonly used in ships and submarines. Steel is an alloy of mostly iron alloyed with between 0.2% and 2.1% carbon‚ but the most common steel found on ships is a low carbon alloy. Metals like Magnesium and Chromium can also be added to this alloy for improvements in strength and weight.[4]. Both
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abnormal reactions of the immune system that occur in response to otherwise harmless substances. Micronutrients are essential elements that are needed only in small quantities for example; zinc‚ copper‚ selenium‚ iodine‚ magnesium‚ iron‚ cobalt‚ and chromium. Macronutrients are the main nutrients that provide the body with energy and help growth. They include carbohydrates‚ protein and fats. Background information Eating a healthy‚ balanced diet is very important for maintaining health and fitness.
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previously difficult to extract. Crude oil is a compound in form of a liquid. Crude oil is composed mostly of hydrogen and carbon. Crude oil is also made up of mixtures of several other substances such as benzene‚ chromium‚ iron‚ mercury‚ nickel‚ nitrogen‚ oxygen‚ sulphur‚ toluene‚ and xylene. This mixture results in a dark‚ yellow‚ greasy liquid. Within crude oil‚ there are many different types of fuel that are used for different objects‚ depending on the number of
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Zirconium is a chemical element with the symbol Zr‚ atomic number 40 and atomic mass of 91.224. The name of zirconium is taken from the mineral zircon‚ the most important source of zirconium. It is a lustrous‚ grey-white‚ strong transition metal that resembles titanium. Zirconium is mainly used as a refractory and opacifier‚ although minor amounts are used as alloying agent for its strong resistance to corrosion. Zirconium forms a variety of inorganic and organometallic compounds such as zirconium
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operating on Australian lands are to abide by the term and regulations. (c) Argentina’s‚ Chilli’s‚ and United Kingdom’s claims are all in the same area and are about the same size. Key Ag - Silver Au - Gold Co - Cobalt Cu - copper Cr - Chromium Fe - Iron Mb - Molybdenum Mn - Manganese Ni - Nickel Pb - Lead Ti - Titanium U - Uranium Zn - Zinc (d)The ban on mineral exploitation states that mining in Antarctica
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