The province which has more area of land covered with snow is province 4 and its economic development to that province is that it helps to generate electricity where it melts and flows in rivers and lakes which helps in its development.
This is known as a principal administrative division within a country or a state. It s an area of land under political control by an outside country.
Hence, we can see that the provinces of Nepal were formed on 20 September 2015 in accordance with Schedule 4 of the Constitution of Nepal. The seven provinces were formed by grouping the existing districts.
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