A(n) ________ spectrum has bright lines on dark background.

A. absorption
B. continuous
C. emission
D. None of these choices are correct.


Answer: C

Physics & Space Science

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As rock is weathered it breaks down and erodes. Sedimentation begins where erosion stops. Erosion is

A) disintegration and fragmentation of rock into smaller pieces. B) a chemical process. C) decomposition and alteration of rock material. D) transportation of rock particles via water wind or ice.

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The separation of red and blue light in single-lens telescopes is called ________ aberration

Fill in the blank(s) with correct word

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The most efficient engine possible is the

A) Joule cycle. B) Wright cycle. C) Kelvin cycle. D) Carnot cycle. E) Otto cycle.

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The Milky Way is considered to be an intermediately wound, barred spiral, which would be type ________, according to Hubble

A) SBb B) B2S C) Sa D) E4 E) SBV

Physics & Space Science