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A phosphor become luminescent in some conditions (in fluorescent lights under electrical discharge); a phosphor is not the chemical element phosphorus.
A physical or chemical change in an organisms environment to which it responds is a stimulus.
Carcinogens
mercury
Environment means ones surrounding and it is the sum of social, economical, biological, physical and chemical factors which constitute the surrounding of human being who is both the creator and moulder of his environment
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The properties are affected by its chemical composition, method of formation, crystal latticework, and environment surrounding its formation.
Chemical spills is when an uncontrollable substance is released into bodies of water or onto land, ultimately harming the surrounding environment. They are dangerous and need to be ceased as soon as possible because they spread extremely quick and can cause detrimental, perpetual harm to many ecosystems. Chemical spills can be life threatening and need to be taken seriously. Chemical spills can infect the air people breathe, forcing them to go somewhere else, it can contaminate the water so it will not be able to be consumed and at the same time killing all the wildlife living in the water. They need to not be taken precariously because it could be life threatening.
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A phosphor become luminescent in some conditions (in fluorescent lights under electrical discharge); a phosphor is not the chemical element phosphorus.
Carbon Monoxide, Carbon Dioxide, Chlorofluorocarbon, Soot and impure carbon particles are chemical substances that have the tendency to contaminate air. Hope that answers your question!
clarify please......where in the environment....what type of chemical changes etc....
An environmental hazard is a generic term for any situation or state of events which poses a threat to the surrounding environment. Such a hazard generally consists of a chemical spill or dumping, but also of various emissions of pollutants or the leaching of pesticides and fertilizers into the surrounding environment.
To keep the food in the refrigerator cool, there is a thermally-insulated layer to keep the heat out as well as an in-built heat pump (chemical or mechanical) to transfer the heat from within the fridge to it's external environment, increasing the temperature of the surrounding air.
The use of chemical additives in soil can have several negative consequences on the environment. These chemicals may contaminate groundwater and surface water sources, leading to pollution and potential harm to aquatic ecosystems. Additionally, they can disrupt the natural balance of microorganisms in the soil, affecting its fertility and overall health. Prolonged and excessive use of chemical additives can also contribute to soil erosion and degradation over time.