Reference Notes Sources and Effects of air pollution For: Science Class 11 | Biology
The air pollution Any undesirable change in physical, chemical, and biological character of air, which affects the living organisms, is called air pollution.
Sources and pollutants
Commerce | Economics Problems of Mineral Resource Development For: Management Class 11
Problems of Mineral Resource Development: There is no doubt that we have large variety of minerals and some of them are available in large quantity. But minerals development
Economics Notes | Commerce Importance of Mineral Resource In Economic Development of Nepal For: Management Class 11
The materials which are obtained from the mine or extracted by digging the earth are known as mineral.
Economics Notes | Commerce Importance of Mineral Resource In Economic Development of Nepal For: Management Class 11
The materials which are obtained from the mine or extracted by digging the earth are known as mineral.
Notice | Time Table HSEB Exam Routine (Schedule) Year: 2072 (2015) For: Class 11 (All Faculty) | Earthquake Effected Region
Recently, HSEB had published new Routine for Class 11 and Class 12 Board Exam of Earthquake effected seven district.