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t. e. Noise pollution, or sound pollution, is the propagation of noise or sound with ranging impacts on the activity of human or animal life, most of which are harmful to a degree. The source of outdoor noise worldwide is mainly caused by machines, transport and propagation systems. [ 1 ][ 2 ][ 3 ] Poor urban planning may give rise to noise ...
Light pollution is the presence of any unwanted, inappropriate, or excessive artificial lighting. [ 1 ][ 2 ] In a descriptive sense, the term light pollution refers to the effects of any poorly implemented lighting sources, during the day or night. Light pollution can be understood not only as a phenomenon resulting from a specific source or ...
Byju's (stylised as BYJU'S) is an Indian multinational educational technology company, headquartered in Bengaluru. [4] It was founded in 2011 by Byju Raveendran and Divya Gokulnath . As of January 2024, Byju's made a valuation ask of $200 million, a sharp fall given its peak valuation of $22 billion in 2022.
Byju was born in 5th January 1980 in the Azhikode [ 1][ 2] village of Kerala, India to Raveendran and Shobhanavalli, physics and mathematics teachers, respectively. [ 3][ 4] He studied at a Malayalam medium school where his mother was a mathematics teacher and his father a physics teacher. [ 5][ 6] He would skip classes and then learn at home ...
Radioactive contamination, also called radiological pollution, is the deposition of, or presence of radioactive substances on surfaces or within solids, liquids, or gases (including the human body), where their presence is unintended or undesirable (from the International Atomic Energy Agency (IAEA) definition). [ 3]
Environmental noise is an accumulation of noise pollution that occurs outside. This noise can be caused by transport, industrial, and recreational activities. [1] Noise is frequently described as 'unwanted sound'. Within this context, environmental noise is generally present in some form in all areas of human, animal, or environmental activity.
Roblox occasionally hosts real-life and virtual events. They have in the past hosted events such as BloxCon, which was a convention for ordinary players on the platform. [36] Roblox operates annual Easter egg hunts [43] and also hosts an annual event called the "Bloxy Awards", an awards ceremony that also functions as a fundraiser. The 2020 ...
Volatile organic compounds ( VOCs) are organic compounds that have a high vapor pressure at room temperature. [ 1] High vapor pressure correlates with a low boiling point, which relates to the number of the sample's molecules in the surrounding air, a trait known as volatility. [ 2]