Which of the following helps explain how a rainbow of colors can form when sunlight passes through a prism?

As the white light moves through the two faces of the prism, the different colors bend different amounts and in doing so spread out into a rainbow. In a rainbow, raindrops in the air act as tiny prisms. Light enters the raindrop, reflects off of the side of the drop and exits.

it is a limiting nutrient limited by a single nutrient in the ecosystem, & the single goes very slow.