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 by   Maryam Hussain How does air become humid and dry? When the air remains in contact with a water surface then it gets the vapor from water because of the continuous evaporation of water in the air above it. The extent of the evaporation rate is a function of the vapor pressure of water at the present temperature of the water. When the quantity of vapors of the water in the air is such that the partial pressure of vapors in the air equals the vapor pressure of the water at its existing temperature then an equilibrium is said to be reached between the two pressures and the gas is said to be saturated   with this vapor. It is not possible for the air to contain a greater stable concentration of water vapor, because as soon as the vapor pressure of the water is exceeded by the partial pressure of the water vapor, condensation takes place . When the air contains water vapor then it is called moist air or humid air. When the air contains water vapor in such p...

by   Maryam Hussain Cattle animals are also called ruminant animals because they are capable to consume and digest plant materials and are classified as herbivores . Ruminants include cattle, sheep, goats, deer, elk, and many other wild species. The word ruminant came from the property of such animals to ruminate i-e chew the cud. There are inherent major modifications of the GI tract of ruminants relating to the stomach area, which is divided into four compartments, and all of this help to process the ingested food towards milk, meat, and energy. The symbiotic relationship between microorganisms and host is developed to the highest degree in the GI tract of ruminants because the rumen provides a favorable environment. Cattle pick their meals by smell and taste, then graze until the first chamber of the stomach, the rumen, is full. Once the rumen is full of grass or hay, the cattle will lie down in a comfortable spot and, mouthful by mouthful, burp it all back up ag...

by   Maryam Hussain What is the definition of job description? A job description is a document setting out in detail the duties of the job, the reporting requirements, and the qualifications and experience required. Job description of water utility plant operator Position Title:   Water utility plant shift operator Area: Water treatment plant and distribution bay Reports to:   In-charge Operator Plant Utilities (I/C-O)   Required skills: Have a high school diploma in chemical or mechanical technology Have water utility plant certification Basic computer software operation skills e.g. MS-word, MS-excel, MS-ppt  Preferred skills: Communication skills 1-2 years of experience in the water trea...

by   Maryam Hussain What are the common causes of clogging of the drain of a Kitchen Sink? Clogging of a kitchen sink drain is a frequently faced problem. The causes of kitchen drain clogging may be the accumulation of oily or greasy wash that leached out from dinner set or pressure cookers, or foodstuff that escaped through sink screens while washing.  What are the symptoms of clogged drain? The symptom of a clogged sink is either no or a slow decrease in the water level in the sink . What is the first of all methods to unclog the drain of a kitchen sink? Some methods work to some extent but there is a method that really works.   By the way, I have tried all of these methods. You can first attempt to unclog the drain of kitchen sink by pouring the boiling water into the sink. But if the water doesn’t start to move, you’ll need other methods. What is chemical treatment method to open the clogged drain? The next set of remedial methods is the chemical...

 by   Maryam Hussain An adequate supply of water to fulfill the needs of kitchen, drinking and sanitation is a primary requisite for good health. When a town water supply is not available , then the owner of the property must develop a quality water storage and supply system for the use of residents of his property.  While estimating the water storage requirements , consideration should be given to the peak daily water usage, the maximum-day demand, the capacity of the normal and standby pumping equipment, the availability and capacity of second power supply, an estimated duration of power failure, and the duration of time required for repairs with respect to the time of power and equipment failure. A preferred minimum storage capacity would be a two-day use or a maximum-day usage. Three days of storage is the preferred one. All distribution reservoirs should be covered, should be provided with an overflow, and should be provided with a drain, access manh...

by   Maryam Hussain What is a chemical equation? A chemical equation is merely a representation of a chemical reaction in the chemist's shorthand.   A chemical reaction is what happens when one substance meets and reacts with another and a new substance is formed. The substances that react together are called reactants , and those formed are called products. The chemical properties of reactants involved in a chemical reaction are different from those of products.  Chemical properties are characteristics that involve chemical change. A chemical property of hydrogen gas is that it combines with oxygen gas to form water (liquid). A chemical property of chlorine gas is that it combines with sodium metal to form table salt, a non-metal solid. A chemical property of gasoline is that it ignites to undergo combusts to produce carbon dioxide and carbon monoxide and a lot of heat. A chemical equation obeys the “law of conservation of mass” which states ...