Water+Vapor

=**By:Lesley Castrillon What is water vapor?**=

Water vapor is water in its gaseous state-instead of liquid or solid (ice). Water vapor is totally invisible. If you see a cloud, fog, or mist, these are all liquid water, not water vapor. Water vapor is extremely important to the weather and climate. Without out it, there would be no clouds or rain or snow, since all of these have their source in water vapor.Greenhouse gases absorb this energy, thereby allowing less heat to escape back to space, and trapping it in the lower atmosphere. Many greenhouse gases occur naturally in the atmosphere, such as carbon dioxide, methane, water vapor, and nitrous oxide, while others are synthetic All of the water vapor that evaporates from the surface of the Earth eventually returns as precipitation - rain or snow. Water vapor is also the Earth's most important greenhouse gas, giving us over 90% of the Earth's natural greenhouse effect, which helps keep the Earth warm enough to support life. When liquid water is evaporated to form water vapor, heat is absorbed. This helps to cool the surface of the Earth. This "latent heat of condensation" is released again when the water vapor condenses to form cloud water. This source of heat helps drive the updrafts in clouds and precipitation systems. =**Water's three phases are a key to the weather**=

Everyone knows that water its important for the weather because it helps plants and animals to survive. Water is the main source of energy to Earth to run the weather machine.The climate is a change in the statistical distribution of weather over period of time that range from decades to millions of years climate change over the past century .Water include all the substance they are solid ,liquid, and gas this three are really important because it determine temperature and the average speed.According to the models, as the Earth warms more water evaporates from the ocean, and the amount of water vapor in the atmosphere increases. Since water vapor is the main greenhouse gas, this leads to a further increase in the atmospheric temperature. The models assume that changes in temperature and water vapor will result in a constant relative humidity ( as temperatures increase, the specific humidity increases, keeping the relative humidity constant,this is one of the most controversial aspects of the models.Can you drink water vapor? The answer is yes you can healthy energy drink fueled with energy.

The sun, which drives the water cycle, heats water in oceans and seas. Water evaporates as water vapor into the air. Ice and snow can sublimate directly into water vapor. Evapotranspiration is water transpired from plants and evaporated from the soil. Rising air currents take the vapor up into the atmosphere where cooler temperatures cause it to condense into clouds. Air currents move water vapor around the globe, cloud particles collide, grow, and fall out of the sky as precipitation. Some precipitation falls as snow or hail, and can accumulate as ice caps and glaciers, which can store frozen water for thousands of years.

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