Back to Top. 1  These are the waves which are having the lowest frequency in the electromagnetic spectrum. They are given out by transmitter. 2  They are formed as a result of thunder, lightning etc. 3  They are used in communication mostly.  They are of four types of radio waves 1  namely: Long wave.  Medium 1  wave. Ultra high frequency  (UHF)
What is the role of arsenic in the mining industry . Arsenic is a naturally occurring element commonly found as an impurity in metal ores, and is produced commercially for use in pesticides, wood preservatives, and , Get Price arsenic - definition of arsenic by Medical dictionary
In this quest it's as well we first overview arsenic in different sectors of the mine environment geochemistry, it's competing toxicities with other metals from source, the operationally ameliorated and remediated environment to stop arsenic running to see improvements. Phytoremediation has a potentially large role here for arsenic.