Sean enjoys studying the stars. he used a photometry tool to calculate several stars' apparent magnitudes (how bright a star looks in the sky). he then researched the stars' distances from earth. he recorded his results in the table below.

B  

Explanation:  A star's apparent magnitude is not directly related to its distance from Earth.

B

Explanation:

Explanation:   The star's apparent magnitude is not directly related to its distance from Earth.

c

explanation:

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what do the different brain waves do?

explanation:

brainwaves are produced by synchronised electrical pulses from masses of neurons communicating with each other. brainwaves are detected using sensors placed on the scalp. brainwave speed is measured in hertz (cycles per second) and they are divided into bands delineating slow, moderate, and fast waves.