The common name for H2O is water. Water is a chemical compound consisting of two hydrogen atoms bonded to one oxygen atom. It is essential for all known forms of life and is found in various states: liquid, solid (ice), and gas (water vapor). Water covers about 71% of the Earth’s surface, mostly in seas and oceans. It plays a crucial role in many biological processes and is a vital resource for human activities such as agriculture, industry, and daily living.
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