Standard disclaimer - this is just my experience as an individual. I joined before the wars, and I can't tell you why, and I've stayed for a variety of reasons. But one of the reasons I've stayed in is all the people I served with who stayed in, fighting in those pointless wars.. I'm not a killer, so I couldn't contribute that way.
Arsenic is a chemical element with symbol As and atomic number 33. Arsenic occurs in many minerals, usually in conjunction with sulfur and metals, and also as a pure elemental crystal. Arsenic is a metalloid. It can exist in various allotropes, although only the gray form has important use in industry.
2.1 Arsenic is found in the natural environment in some abundance in the Earthâs crust and in small quantities in rock, soil, water and air. It is present in many different minerals. About one third of the arsenic in the atmosphere comes from natural sources, such as volcanoes, and the rest comes from man-made sources.ontext-Arsenic is a poisonous substance, which is released both from certain human activities and naturally from the Earth's crust. Humans may be exposed to arsenic mainly through food and water, particularly in certain areas where the groundwater is in contact with arsenic-containing minerals.