Which of the following agencies related to the United Nations is concerned with promoting the growth of international trade and equilibrium in balance of payments?
Options: United Nations Industrial Development Organisation, International Development Association, International Bank for Reconstruction and Development Organisation, United Nation Development Programme
Options: invented the safety lamp for miners, discovered the anesthetic properties of nitrous oxide, both (a) and (b), None of the above
The hydrological cycle is a conceptual model that describes
Options: the storage of water between biosphere, hydrosphere, atmosphere and lithosphere, the movement of water between biosphere, atmosphere, lithosphere and hydrosphere, both (a) and (b), None of the above
Options: the densities of the liquid in the two vessels are equal, the level of the liquid in the two vessels are at the same height, both its limbs are of unequal length, the temperature of the liquids in the two vessels are the same