CBSE Class 10 Social Geography Water Resources notes
♦ Dam: A barrier across the flowing water.
♦ Flora: Plants of a particular region or period are referred to as flora.
♦ Fauna: Species of animals are known as fauna.
♦ Forest: Extensive area covered with trees.
♦ Groundwater: Water which is obtained from a depth of more than 15 metres is known as groundwater.
♦ Hydroelectricity: It is the power which is generated with the help of running water.
♦ Multipurpose project: A River valley project which serves a number of purposes simultaneously such as irrigation, flood control and generates hydroelectricity, e.g. the Bhakra Nangal.
♦ Perennial canals: Canals developed by diverting water from rivers that flow throughout the year.
♦ Soil: The upper layer of the ground containing weathered rocks and humus.
♦ Water scarcity: Shortage of water as compared to its demand is known as water scarcity.
♦ Rainwater harvesting: It is a technique of increasing the recharge of groundwater by capturing and storing rainwater, by constructing structures such as percolating pits, check dams, etc.