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?
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In which of the following situations is mechanical energy most likely to be conserved?
Indian Constitution came into force on
What is the full form of the Indian Political Party "NCP"?
Any undesirable change in physical, chemical or biological characteristics of air, land, water or soil is called?
Which of the following was published by Gandhji during his stay in South Africa?
Which of the following has become the first country in the world to pay equal salary to men and women?
Which one of the following is not a property of electromagnetic waves?