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2 days ago · Category. v. t. e. Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable atomic nucleus loses energy by radiation. A material containing unstable nuclei is considered radioactive. Three of the most common types of decay are alpha, beta, and gamma ...
4 days ago · Definition. 00:00. …. A carcinogen is a substance, organism or agent capable of causing cancer. Carcinogens may occur naturally in the environment (such as ultraviolet rays in sunlight and certain viruses) or may be generated by humans (such as automobile exhaust fumes and cigarette smoke).
5 days ago · Greenhouse gas emissions causing global warming result in a rising Global Mean Sea Level (GMSL) (Oppenheimer et al., 2019).This accelerating process has already started and has so far evolved from 1.4 mm/yr over the period 1901–1990 to 2.1 mm/yr (1970–2015), 3.2 mm/yr (1993–2015), and up to 3.6 mm/yr (2006–2015).
4 days ago · “The hazards that a storm produces do seem to be getting worse,” says Robbie Berg, warning coordination meteorologist at the National Oceanic and Atmospheric Administration’s National ...
2 days ago · It also means promoting health through the prevention of human contact with the hazards associated with the lack of healthy food, clean water and healthful housing, the control of vectors (living organisms that transmit diseases), and a clean environment. It focuses on management of waste produced by human activities.
5 days ago · SO2 is mostly degassed when magma nears the surface. Tephra – a term of Icelandic origin for fragmented volcanic particles of all shapes and sizes. Volcano – vent, hill or mountain from which molten or hot rocks with gaseous material have been ejected. Volcanic bombs – large particle tephra >64 millimeters in diameter that are too heavy ...
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4 hours ago · The human skull is used universally as a symbol of death. Death is the irreversible cessation of all biological functions that sustain a living organism. The remains of a former organism normally begin to decompose shortly after death. Death eventually and inevitably occurs in all organisms. Some organisms, such as Turritopsis dohrnii, are biologically immortal, however they can still die from ...
