Astate of matter is the physical form matter takes on as determined by the
a. arrangement and motion of its atoms or molecules.
b. number of atoms or molecules in a particular substance.
c. shape of the container holding the atoms or molecules.
d. volume of the container surrounding the atoms or molecules.

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measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.

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the sun's light combined with the visible wavelenghts form what is called ultraviolet radiation, which are the long waves at the end of a visible light sprectrum.

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bioteacher101