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what is capillary action?
Tema importante para la vida
el agua marca el ciclo de la vida.
At room temperature 0 to -100 degrees Celsius. It makes excellent solvent and combines well with metals to form bases and non metals to form acids.
What is buffer?
why it is not taking/showing the progress after completeing the module or assesment.
The physical characteristics of water influence the way life on earth exists. Click on the links below to read about six unique characteristics of water.
Water is a liquid at room temperature and over a relatively wide temperature range (0 -100°C). This wide range encompasses the annual mean temperature of most biological environments.
A relatively large amount of energy is required to raise the temperature of water (i.e., it has a high heat capacity). As a result of this property, large bodies of water act as buffers against extreme fluctuations in the climate, water makes as an excellent industrial coolant, and it helps protect living organisms against sudden temperature changes in the environment.
Water has a very high heat of vaporization. Water evaporation helps distribute heat globally; it provides an organism with the means to dissipate unwanted heat.
Water is a good solvent and provides a good medium for chemical reactions, including those that are biologically important. Water carries nutrients to an organism\'s cells and flushes away waste products, and it allows the flow of ions necessary for muscle and nerve functions in animals.
Liquid water has a very high surface tension, the force holding the liquid surface together. This, along with its ability to adhere to surfaces, enables the upward transport of water in plants and soil by capillary action.
Solid water (ice) has a lower density than liquid water at the surface of the earth. If ice were denser than liquid water, it would sink rather than float, and bodies of water in cold climates would eventually freeze solid, killing the organisms living in them.