A culture is a way of life of a group of people--the behaviors, beliefs, values, and symbols that they accept, generally without thinking about them, and that are passed along by communication and imitation from one generation to the next. Culture is symbolic communication.
In 1869 Russian chemist Dimitri Mendeleev started the development of the periodic table, arranging chemicalelements by atomic mass. He predicted the discovery of other elements, and left spaces open in his periodic table for them.
Ores (naturally occurring material out of which metals or some valuable mineral is extracted) generally contains some undesired soil; sand ;stones and some other impurities. these impurities arecalled as gangue or matrix.. also the removal of such impurities from soil iscalled concentration. gangue.
¶ Froth flotation is considered to be the most widely used method for ore beneficiation..Sulfide and non-sulfide minerals as well as native metals are recovered by froth flotation. This process is based on the ability of certain chemicals to modify the surface properties of the mineral(s).
Activity series is the arrangement ofmetals that react the highest to the least ones. It helps in the extraction of metalsas it helps us know which metals arebest reactive and least one in the reaction. It helps to choose the bestmetal for the reaction.
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). During mitosisone cell? divides once to form two identical cells. The major purpose of mitosis is for growth and to replace worn out cells.