Indian Space Research Organisation (ISRO) and Jet Propulsion Laboratory (JPL) of NASA are working on world’s most expensive earth-imaging satellite to use dual frequency. Its name is ______
The method of soil conservation in which ploughing is done parallel to the contours of a hill slope to form a natural barrier for water to flow down the slop is called?
According to Stockholm International Peace Research Institute, with spending of $55.9 Billion in 2016, which country became world’s fifth-largest military spender?