The eerie and pretty northern and southern lights that are produced when gases in Earth's upper atmosphere glow from energy delivered by the solar wind are referred to as _____

A) aurorae
B) coronal holes
C) solar flares
D) spicules

A

Physics & Space Science

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Which one of the hydrogen atoms below is EMITTING light? The electron jumps from the

a. second energy level to first (most bound). b. third energy level to fourth. c. fourth energy level to fifth. d. second energy level to third. e. first energy level to second.

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Physics & Space Science

Which of the following statements best describes the line of stability?

a. It has N = Z when A = 240. b. It has Z > N at A = 240 c. N always tends to be greater than Z. d. N tends to be greater than Z, especially for masses greater than calcium.

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Physics & Space Science

Life on Earth can use a variety of different carbon and energy sources. However, the one thing that no organism on Earth can survive without is

A) water in any form: solid, liquid, or gas B) oxygen C) a liquid solvent of any kind D) liquid water

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Physics & Space Science

The color on the outer edge of the primary rainbow is

A) white B) red C) violet D) yellow E) green

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Physics & Space Science