Growth temperature is the temperature at which an organism exhibits the highest growth rate.

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answer: collecting information/data

reason: the student is going around and asking people questions to collect data

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colors do exist. the color of the sky is actually violet; humans percieve the color of the sky as blue.

the circled areas are referred to   as sunspots.   the sunspots are cooler than the   surrounding area.

sunspots are temporary phenomena on the photosphere of the sun that appear visibly as dark spots compared to surrounding regions. they correspond to concentrations of magnetic field flux that inhibit convection and result in reduced surface temperature compared to the surrounding photosphere.