Explain how, where, and when the green flash occurs

What will be an ideal response?


Answer: In addition to slightly shifting the apparent position of the Sun near the horizon, refraction can also affect its apparent shape and color. Sometimes, near dawn or sunset the Sun seems to have horizontal bands of different colors, with redder coloration near the bottom. This occurs because longer wavelength colors (such as reds and oranges) undergo less refraction than do shorter wavelength colors (such as blue and green), as described above. The shorter wavelengths, undergoing a greater amount of refraction, concentrate near the top of the apparent sun, while the longer wavelengths locate near the bottom. Under some atmospheric conditions the Sun appears momentarily to be capped by a bright green spot, known as the green flash.

Environmental & Atmospheric Sciences

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Indicate whether this statement is true or false.

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Which of the following was NOT a strategy of the Soviet Union in Central Asia?

A) replace local leaders with Communist Party officials B) defining a series of union republics based on ethnicity C) encouragement of Russian immigration and the use of Russian (Cyrillic) alphabet D) nurture local nationalisms E) creation of complex borders for new republics

Environmental & Atmospheric Sciences

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Indicate whether the statement is true or false.

Environmental & Atmospheric Sciences

Historically, the United States and Canada as a culture region are sometimes called "Anglo America"

Indicate whether the statement is true or false

Environmental & Atmospheric Sciences