The ionosphere includes
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1) The most important force that provide resistance to particles towards entertainment is
2) The cities of ‘Hiroshima’ and ‘Nagasaki’ are located on which among the following Islands of Japanese Archipelago?
3) The hydrological cycle is a conceptual model that describes
4) The reaction between compounds and oxygen is called
5) The slow down slope movement of soil and sediment because of frost heaving and thawing is called