Who discovered oxygen? 

२०७२ सालको नेपालको संबिधान कति औ संबिधान हो? 

An idle pavement is constructed with: 

Count the number of triangles and squares in the given figure. 

The use of alidade is associated with: 

The specific retention is least in case of 

The liquid limit and plastic limit exists in 

In reciprocal levelling, the error which is not completely eliminated, is due to