According to Stockholm International Peace Research Institute, with spending of $55.9 Billion in 2016, which country became world’s fifth-largest military spender?
The value of g on the moon is 1/6th of the value of g on the earth. If a man can jump 1.5 m high on the earth, on the moon, be can jump up to a height of
The method of soil conservation in which stones, grass, soil are used to build barriers along contours and trenches are made in front of the barriers to collect water is called?