Water - A Precious Natural Resource

The video highlights the critical role of water in human health, emphasizing that 70% of the human body is water. It discusses the necessity of drinking 8-10 glasses of water daily and the importance of water for all living organisms. The video also covers water usage in domestic, agricultural, and industrial contexts, noting that most household water is used for flushing toilets. Despite Earth's abundance of water, only a small fraction is fresh and usable, with most being saline. The video explains the distribution of water on Earth and the significance of conserving freshwater, which is sourced from surface and groundwater.

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