of H 2 O at standard ambient temperature and
pressure. It forms precipitation in the form of
rain and aerosols in the form of fog. Clouds
are formed from suspended droplets of water
and ice, its solid state. When finely divided,
crystalline ice may precipitate in the form of
snow. The gaseous state of water is steam or
water vapor. Water moves continually through
the water cycle of evaporation, transpiration
(evapotranspiration), condensation,
precipitation, and runoff, usually reaching the
sea.
Water covers 71% of the Earth’s surface,
mostly in seas and oceans. Small portions
of water occur as groundwater (1.7%), in
the glaciers and the ice caps of Antarctica
and Greenland (1.7%), and in the air as
vapor, clouds (formed of ice and liquid water
suspended in air), and precipitation (0.001%).
Water plays an important role in the
world economy. Approximately 70% of
the freshwater used by humans goes to
agriculture. Fishing in salt and fresh water
bodies is a major source of food for many
AgriKultuur |AgriCulture
parts of the world. Much of long-distance trade
of commodities (such as oil and natural gas)
and manufactured products is transported by
boats through seas, rivers, lakes, and canals.
Large quantities of water, ice, and steam
are used for cooling and heating, in industry
and homes. Water is an excellent solvent for
a wide variety of chemical substances; as
such it is widely used in industrial processes,
and in cooking and washing. Water is also
central to many sports and other forms of
entertainment, such as swimming, pleasure
boating, boat racing, surfing, sport fishing, and
diving.
Density: 997 kg/m³
Boiling point: 100 °C
Molar mass: 18,01528 g/mol
Formula: H 2 O
Melting point: 0 °C
What is Nanobubbles (microbubbles)?
Nanobubbles are nanoscopic gaseous
(typically air) cavities in aqueous solutions
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