When the Atmosphere Is Not Quite Clear, One May Sometimes

question 11

Multiple Choice

When the atmosphere is not quite clear, one may sometimes see colored circles concentric with the Sun or the Moon.These are generally not more than a few diameters of the Sun or Moon and invariably the innermost ring is blue.The explanation for these phenomena involves:

• A)reflection
• B)refraction
• C)interference
• D)diffraction
• E)Doppler effect

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Definitions:

Reptiles

Cold-blooded vertebrates characterized by scales or hard plates, such as snakes, turtles, and lizards, that reproduce mostly through eggs.

Modern-Day Mammals

Contemporary species of the mammalian class, characterized by features such as hair, three middle ear bones, and mammary glands for feeding young.

Paleontologists

Scientists who study the history of life on Earth through the examination of fossilized remains and traces of organisms.

Carbon Dating

A method used to determine the age of an object containing organic material by measuring the decay rate of carbon-14 isotopes.