Nitrate (NO3-) is a color-retaining chemical with CAS numbers 23746-18-1 and others. Chemical structure includes 2D, 3D conformers and crystal structures
Silt is granular material between sand and clay, composed mainly of quartz grains. Particles range from 2 to 63 microns in size. Dry silt feels floury, wet silt lacks plasticity. Modern mud contains an average of 45% silt
Seabirds are marine birds adapted to live in saltwater environments. First seabirds evolved in Cretaceous period, modern families emerged in Paleogene. Most species live longer, breed later and have fewer young than other birds. 95% of seabirds are colonial, with colonies reaching millions
Clear, colourless, non-flammable liquid with chloroform-like smell. First synthesized in 1836 by Auguste Laurent. Discovered by E. Fischer in 1864 via reduction of hexachloroethane. Commercial production began in Germany in 1920, US in 1925
Combustion is a high-temperature exothermic reaction between fuel and oxygen. Combustion produces oxidized products in smoke mixture. Flame is visible only when substances undergo combustion. Combustion requires activation energy but can be self-sustaining
Minamata disease is methylmercury poisoning causing neurological symptoms. First recorded in Japan in 1950s from contaminated seafood consumption. Villagers experienced numbness, hearing/seeing problems, and tremors. Chisso Corporation dumped 82 tons of mercury compounds into Minamata Bay