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 Source of Water on Earth & Sorrow of earth https://www.khanacademy.org/science/telangana-class-7-science/x71e9264c5e9276b1:water-too-little-to-waste/x71e9264c5e9276b1:14-1-source-of-water-on-earth/e/depletion-of-water 2026-04-07T23:36:17.218592739Z Depletion of water Depletion of Water Exercise for Class 7 | Causes, Effects, Groundwater Decline, Human Impact, and Solutions | Conceptual and Real-Life Application Questions Yajurva Joshi exercise