Examlex
Which of the following lighting types consists of a special type of semiconductor that emits light when current is applied via energy released as photons when electrons cross the boundary from between the n-type and p-type materials?
Oxygen Levels
The amount of oxygen present in a given environment or substance, often measured to assess air or water quality.
Inorganic Nutrients
Nutrients that do not contain carbon-hydrogen bonds, essential for plant growth, such as nitrogen, phosphorus, and potassium.
Nitrates
Inorganic compounds made of nitrogen and oxygen that are found naturally in the environment but can cause health and environmental issues at high concentrations.
Phosphates
Inorganic chemical compounds used as fertilizers and in various industrial applications, often contributing to water pollution.
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