1. Other than limestone which is soluble in Karst Topography: Gypsum  & Dolomite
2. Function of transformer: Covert high AC to Low AC Voltages & Convert Low AC to High AC Voltages
3. The areas 5-degree N to 5-degree S of the Equator is called ______ Doldrums
4. The averages temperature of Pacific Ocean in summer or winter is _________ Decreased
5. United Nations election in 2020 is about: To select non-permanent members of UN Security Council

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