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Water is one of the natural resources, which are found in an adequate amount. It is an essential source for the existence of life on the planet earth. It is widely used for various purposes such as drinking, washing, bathing, cleaning, cooking, irrigation, and other industrial and domestic uses.
Water covers about 71% of the Earth's surface, with seas and oceans making up most of the water volume (about 96.5%). 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 (consisting of ice and liquid water suspended in air), and precipitation ...
1 day ago · Water is made up of hydrogen and oxygen, and it exists in gaseous, liquid, and solid states. Water is one of the most plentiful and essential compounds, occurring as a liquid on Earth’s surface under normal conditions, which makes it invaluable for human uses and as plant and animal habitat.
For the full article, see water . water, Inorganic compound composed of hydrogen and oxygen (H 2 O), existing in liquid, gas ( steam, water vapour), and solid ( ice) states. At room temperature, water is a colourless, odourless, tasteless liquid.
1 day ago · In pure water, in which [H +] = 1.0 × 10 −7 M, the pH = 7.0. For an acidic solution, the pH is less than 7. When a base (a substance that behaves as a proton acceptor) is dissolved in water, the H + concentration is decreased so that [OH −] > [H + ]. A basic solution is characterized by having a pH > 7.
It moves inside the planet, across its surface, and in the atmosphere above. Water in lakes, rivers, and oceans turns into vapor and moves into the air through evaporation. Plants draw water from the soil and return it to the air. Volcanoes release water vapor that was locked deep inside rocks.
Physical properties. Water is the chemical substance with chemical formula H. 2O; one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. [25] Water is a tasteless, odorless liquid at ambient temperature and pressure.
Jun 23, 2022 · One of the truly amazing things about water is that it's never used up: it's just recycled over and over again, constantly moving between the plants, animals, rivers, and seas on Earth's surface and the atmosphere up above. Let's take a look at this life-giving liquid and find out what makes it so special!
Sep 13, 2023 · Safe and readily available water is important for public health, whether it is used for drinking, domestic use, food production or recreational purposes. Improved water supply and sanitation, and better management of water resources, can boost countries’ economic growth and can contribute greatly to poverty reduction.
Water in three states: liquid (including the clouds, which are aerosols), solid and gas (water vapour). Water (H 2 O) is a transparent, tasteless, odourless, and almost always colourless chemical substance and covers about 71% of Earth's surface.. No known life can live without it. Water is essential for life. This has to be qualified a bit. There are some forms of life which can survive without it, but cannot reproduce without it. Since reproduction is a central part of life, it is clear ...
