Help me out please and i need this by 4:00 ?

Its wavelength decreases

Explanation:

There is an inverse relationship between distance and light intensity - as the distance increases, light intensity decreases. This is because as the distance away from a light source increases, photons of light become spread over a wider area.

they float because they are less dense than the water itself

something denser than water, like a rock, will sink to the bottom

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