Huge volumes of wastewater are generated daily from various sources such as households, industry and agricultural activities. They contain toxic materials and various forms of pollutants that can destroy the…
Nature is arranged in such a way that all living organisms living on Earth are subject to growth, aging and dying. In the very process of development, the fading and…
Listed in the video all the devices one Rope mop The first disadvantage of a rope mop is that it does not hold moisture well and leaves too much water…