Adele is planning to paint the walls in her room over spring break. she studies several color samples and is trying to decide between yellow, green, and blue hues. what light wave attribute allows adele to differentiate between these colors? â a. âthe amplitude of waves b. âthe wavelength of the waves c. âthe number of waves d. âthe types of waves

b. The wavelength. Wavelength is intrinsic to our perception of color, and on the ROYGBIV spectrum red light has the longest wavelength, while violet has the shortest. All of the other colors fall somewhere in between in terms of their wavelength, and it is these differences that allow Adele to perceive various colors.

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Stars are born within the clouds of dust and scattered throughout most galaxies. a familiar example of such as a dust cloud is the orion nebula. turbulence deep within these clouds gives rise to knots with sufficient mass that the gas and dust can begin to collapse under its own gravitational attraction. as the cloud collapses, the material at the center begins to heat up. known as a protostar, it is this hot core at the heart of the collapsing cloud that will one day become a star. three-dimensional computer models of star formation predict that the spinning clouds of collapsing gas and dust may break up into two or three blobs; this would explain why the majority the stars in the milky way are paired or in groups of multiple stars.therefor, i would say the answer is: dust and gases contract.i hope this ! < 3