Contamination of drinking water due to fluoride is a severe health hazard problem. Excess of fluoride (>1.5 mg/l) in drinking water is harmful to human health.
Phytocenoses in the ecosystems contact zones are characterized by a rather complex structural and dynamical more than one features and by specific development c
The seismicity of the Arabian plate, which is the aim of this paper, is controlled by the ZagrosTaurus collision zone in the North, the Indian expansion zone an