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In Marshes and Other Wet Areas Where Vegetation Is Rotting

question 17

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In marshes and other wet areas where vegetation is rotting, the water surface often has an oily sheen due to insoluble compounds. What are these molecules?


Definitions:

Retina

A layer of cells at the back of the eye that senses light and sends visual signals to the brain for processing.

Phenomena

Observable events or occurrences that are notable for their distinctive features, especially those which are scientifically interesting or challenging to explain.

Distribution

The process by which goods or services are made available to consumers or the manner in which a phenomenon is spread out or distributed across an area or population.

Cones

Photoreceptor cells in the retina of the eye responsible for color vision and visual acuity under bright light conditions.

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