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What is asphalt? To The Point Notes Asphalt , which is also known as bitumen, which is a black coloured, sticky and highly viscous liquid. We also say that it is a semi – solid form of petroleum. The asphalt may be found in natural deposites or it may be produced a… Read more

hey readers!! here we are providing you all set of questions which are asked in previous UPSC Civil Services Examination. we have categoriesed all topics ,subject wise or your convenience. ask your questions if there is any query related to questions or topics give… Read more