A Rainbow Sometimes Occurs After a Storm Because the Droplets

question 219

Multiple Choice

A rainbow sometimes occurs after a storm because the droplets of water in the air refract and reflect rays of light from the sun. The angle of refraction is different for different wavelengths of light, and this accounts for the separation of colors in the rainbow.

• A) Argument, conclusion: The droplets of water in the air ... light from the sun.
• B) Argument, conclusion: The angle of refraction ... wavelengths of light.
• C) Nonargument.
• D) Argument, conclusion: A rainbow sometimes occurs after a storm.
• E) Argument, conclusion: This accounts for the separation of colors in the rainbow.

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Definitions:

Plasma Membrane

A membrane made of two layers of lipids encircles the cell, managing how substances move into and out of it.

Intracellular

Located or occurring within a cell or cells.

Extracellular

Located or occurring outside the cell, often referring to the environment or substances in the space surrounding cells.

Chemical Signals

Molecules released by cells that have the effect of altering the metabolism, growth, or activity of other cells that possess receptors for the signal.