https://www.khanacademy.org/science/revision-up-science-class-6-full-term/x00110b31861f2508:week-4/x00110b31861f2508:nature-s-treasures/v/water 2025-01-27T07:04:21.433023569Z Water Water scarcity is a major problem faced by over 2 Billion people across the globe. But why does this happen when 70% of the Earth's surface is made up of water? How can we help save water? Joel Prakash Stephen video https://cdn.kastatic.org/googleusercontent/ZCdwTudJg6e6n-P2gsaUborP4izvMsGo71pvEVlX9dNYWcLXcP7VHkWpn2grt4TUP1KoJLQP9NswyHBuBLSFTBw Water Water scarcity is a major problem faced by over 2 Billion people across the globe. But why does this happen when 70% of the Earth's surface is made up of water? How can we help save water? https://cdn.kastatic.org/ka-youtube-converted/Dozbgnftdao.mp4/Dozbgnftdao.mp4 254 Where do we get water from? & Water on the earth https://www.khanacademy.org/science/telangana-class-6-science/x274096cca8bb3cfc:water-in-our-life/x274096cca8bb3cfc:water-sources/e/groundwater-as-an-important-source-of-water 2025-07-23T11:13:11.635610059Z Groundwater as an important source of water Class 7 Science Exercise on Groundwater | NCERT Chapter 16 | Water Table, Depletion, Recharge, Tube Wells, Real-Life Applications | Conceptual Practice Questions Yajurva Joshi exercise https://www.khanacademy.org/science/karnataka-bridge-course-class-7th-science/x23f4b0ee108f5758:water/x23f4b0ee108f5758:properties-of-water/e/need-utility-and-sources-of-water 2025-08-05T08:33:57.588913915Z Need, utility and sources of water LO1: Need and utility of water. LO2: sources of water Revathi exercise