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Stormwater runoff is the result of snow melt or may be due to fall of rain flowing on the land surface. In the event of heavy snow melting and rainfall sewage system exceeds its level and may result in flooding for this prevention stormwater runoff systems are used to utilize this water for household purpose. They help in controlling flood by absorbing rainwater and and slowing down storm surges before water reaches waterbodies, they also filter out nutrients and sediments collected by storm water.
Stormwater that cannot be directed back into rivers or streams is stored in Retention basin.
Retention basins allows water to seep through the soil and then into shallow groundwater aquifer. A basin can be man- made or natural form of depression in the soil. These are the closed systems, constructed in the way that storm water does not reach the natural water body.
Henry was having glass of water with some ice cubes in it and kept it near a window for some time. After some time, the water became warm. This process is called as Melting.
Walter was heating some cubes of ice while conducting an experiment. At one point, the ice melted into water. The correct term used to describe the amount of heat required to prompt a phase change is melting point.
The fifth most common pool where carbon is stored apart from the Earth crust, ocean, soils and atmosphere is fossil fuel.
Hailey is writing about the anatomy of the human body. She identifies that most of the human body is water. Answer is E. The most of the human body is water as the absorption and utilization of oxygen by the body results in production of carbon dioxide. Water is the chief component of body organs, bodily fluids. For various metabolism water like digestion of food and for in various metabolism water is the product like in sweating, urination and defeceation. Therefore the option E is relevant explanation.
Soil converts the organic matter back to COâ‚‚ D. by decomposing it. Reason is numerous soil microbes are present which utilizes this organic matter and convert it into simpler compounds along with carbon dioxide.
Natural process that causing the depletion of the ozone layer D. carbon cycle .
Reason is the  realease  of chlorofloro carbons from devices and greenhouse gases such as methane and carbon dioxide these gases reaches the stratosphere layer of the atmosphere and there they catalyze the breakdown of O₃ layer which is the protective layer for UV radiation coming from the sun. O₃ is converted into O₂ and the layer remains unprotective.
The correct term for the breakdown of organic sediment into inorganic phosphorous  is mineralisation.
Reason is soil transfers the organic forms of phosphorous to plants and microbes also utilizes it in the processes of decomposition and convert it into inorgnic phosphates as a byproduct and this process is called as mineralisation.
Organic sediment on lake bottoms and the ocean floor is broken down by microbes into inorganic forms of phosphorous in a process known as sedimentation.
Tom wants to incorporate more organic practices on his farm. He wants to enrich the nitrogen content of his soil through biological fixation without adding chemical fertilizers. The plants which are best suited for this purpose are D. legumes, such as beans, peanuts and alfaalfa.
Reason is the legume plants lives in symbiotic relation with bacterial, the bacteria invades the roots of these plants and derives nutrients from the plants. The bacteria produces nitrogenous compounds which are taken by the plant. When the plant dies the nitrogen is released in the environment. Therefore legume plants does not require chemical nitrogen fertilizers.
