Arsenic pollution of groundwater is a form of groundwater contamination, which naturally occurs in high concentrations of arsenic in deep groundwater.
Nuclear power plants provide 17% of the world’s electricity. There are over 400 nuclear power plants worldwide
And the production of solar elements and cumulative use gallium, arsenic, selenium and other elements, which become heavy pollutants as they disposal in ground.
the lava and pyroclastic that erupted mount. sakuajima volcano consists of medium- K series and endesite - dacite .the composition clearly differ between eruption periods.
The layers constitute fossils, calcium carbonate rocks
Explanation:
Limestone is a biologic sedimentary rock and is formed by the collection of shells and debris. It can also be formed by the chemical process of sedimentary and precipitation of calcium carbonate.
The limestone is composed of calcium carbonate, calcite, feldspar, and Quartz. Limestone represents karst topography and consists of the chemical composition of clay, iron, feldspar, and quartz. These are arranged in layers.
