5 (a) Water is essential for life. (b) Water exists in all four forms in nature. (c) Rain is the main source of water. (d) Seawater isn't salty. (e) Dew and snow are forms of water.
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Answer:
Water is essential for life. (b) Water exists in all four forms in nature. (c) Rain is the main source of water. (d) Seawater isn't salty. (e) Dew and snow are forms of water
Answer:
Water (chemical formula H2O) is an inorganic, transparent, tasteless, odorless, and nearly colorless chemical substance, which is the main constituent of Earth's hydrosphere and the fluids of all known living organisms (in which it acts as a solvent[1]). It is vital for all known forms of life, even though it provides no calories or organic nutrients. Its chemical formula, H2O, indicates that each of its molecules contains one oxygen and two hydrogen atoms, connected by covalent bonds. The hydrogen atoms are attached to the oxygen atom at an angle of 104.45°.[2] "Water" is the name of the liquid state of H2O at standard conditions for temperature and pressure.