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  2. Labeling of fertilizer - Wikipedia

    en.wikipedia.org/wiki/Labeling_of_fertilizer

    The additional numbers are similarly reported in the oxide mass fraction form. For example, a Polish fertilizer labeled "NPK (Ca,S) 4-12-12 (14-29)" has an equivalent of 14% soluble calcium oxide and 29% total sulfur trioxide .

  3. Molar concentration - Wikipedia

    en.wikipedia.org/wiki/Molar_concentration

    Molar concentration or molarity is most commonly expressed in units of moles of solute per litre of solution. [1] For use in broader applications, it is defined as amount of substance of solute per unit volume of solution, or per unit volume available to the species, represented by lowercase : [2]

  4. Light-emitting diode - Wikipedia

    en.wikipedia.org/wiki/Light-emitting_diode

    This method involves coating LEDs of one color (mostly blue LEDs made of InGaN) with phosphors of different colors to form white light; the resultant LEDs are called phosphor-based or phosphor-converted white LEDs (pcLEDs). [32] A fraction of the blue light undergoes the Stokes shift, which transforms it from shorter wavelengths to longer.

  5. Hexadecimal - Wikipedia

    en.wikipedia.org/wiki/Hexadecimal

    Hexadecimal (also known as base-16 or simply hex) is a positional numeral system that represents numbers using a radix (base) of sixteen. Unlike the decimal system representing numbers using ten symbols, hexadecimal uses sixteen distinct symbols, most often the symbols "0"–"9" to represent values 0 to 9 and "A"–"F" to represent values from ten to fifteen.

  6. Religion in Wales - Wikipedia

    en.wikipedia.org/wiki/Religion_in_Wales

    Religion in Wales has become increasingly diverse over the years.Christianity was the religion of virtually all of the Welsh population until the late 20th century, but it rapidly declined throughout the early 21st century.

  7. Photosynthesis - Wikipedia

    en.wikipedia.org/wiki/Photosynthesis

    Plants usually convert light into chemical energy with a photosynthetic efficiency of 3–6%. [40] [41] Absorbed light that is unconverted is dissipated primarily as heat, with a small fraction (1–2%) reemitted as chlorophyll fluorescence at longer (redder) wavelengths.

  8. List of countries by GDP sector composition - Wikipedia

    en.wikipedia.org/wiki/List_of_countries_by_GDP...

    Country/Economy Total GDP (USD$) Agricultural (%) Industrial (%) Service (%) Agricultural (USD$) Industrial (USD$) Service (USD$) – World 104,480

  9. Renewable energy - Wikipedia

    en.wikipedia.org/wiki/Renewable_energy

    In 2017, a total of 121 countries adopted some form of renewable energy policy. [209] National targets that year existed in 176 countries. [ 214 ] In addition, there is also a wide range of policies at the state/provincial, and local levels. [ 110 ]