(Definition of âallotâ from the Cambridge Business English Dictionary Â© Cambridge University Press)
In your own words, list the fve characterisTcs an Earth material must have in order to be considered a mineral. a Minerals Formed naturally b Inorganic c Solid substances such as ice d Minerals are crystalline substances. Atom are arranged in an orderly, repeTTve manner. e Minerals are chemical compounds 2.
Twenty five elements are recognized as essential components of plants, animals and man. Because these elements are considered essential to life, they could be called bioessential.. A few others, such as cobalt and the rare earth elements, could be included, but information on their roles is less exact.able 1 below is intended to interrelate these essential minerals with brief descriptions of their roles, where known, in plants, animals and man. Deficient or adequate levels are provided only for plant growth.