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The history of water supply and sanitation is one of a logistical challenge to provide clean water and sanitation systems since the dawn of civilization. Where water resources, infrastructure or sanitation systems were insufficient, diseases spread and people fell sick or died prematurely. Astronaut Jack Lousma taking a shower in space, 1974.
The United States federal and state income tax systems are self-assessment systems. Taxpayers must declare and pay tax without assessment by the taxing authority. Quarterly payments of tax estimated to be due are required to the extent taxes are not paid through withholdings. The second and fourth "quarters" are not a quarter of a year in length.
The National Payments Corporation of India ( NPCI) is an organization that operates retail payments and settlement systems in India. The organization is an initiative of the Reserve Bank of India (RBI) and the Indian Banks' Association (IBA) under the provisions of the Payment and Settlement Systems Act, 2007, for creating a robust payment and ...
The Indian Army is the land-based branch and largest component of the Indian Armed Forces. The President of India is the Supreme Commander of the Indian Army, [3] and its professional head is the Chief of Army Staff (COAS). The Indian Army was established on 1 April 1895 alongside the long established presidency armies of the East India Company ...
Then Chairman and CEO Eric Schmidt (left) with co-founders Sergey Brin (center) and Larry Page (right) in 2008. Google LLC (/ ˈ ɡ uː ɡ ə l / ⓘ, GOO-ghəl) is an American multinational corporation and technology company focusing on online advertising, search engine technology, cloud computing, computer software, quantum computing, e-commerce, consumer electronics, and artificial ...
An electrical conductivity meter. An electrical conductivity meter ( EC meter) measures the electrical conductivity in a solution. It has multiple applications in research and engineering, with common usage in hydroponics, aquaculture, aquaponics, and freshwater systems to monitor the amount of nutrients, salts or impurities in the water.
An atmospheric water generator (AWG), is a device that extracts water from humid ambient air, producing potable water. Water vapor in the air can be extracted either by condensation - cooling the air below its dew point , exposing the air to desiccants , using membranes that only pass water vapor, collecting fog, [1] or pressurizing the air.
Ultrapure water (UPW), high-purity water or highly purified water (HPW) is water that has been purified to uncommonly stringent specifications. Ultrapure water is a term commonly used in manufacturing to emphasize the fact that the water is treated to the highest levels of purity for all contaminant types, including: organic and inorganic compounds; dissolved and particulate matter; volatile ...