Which of the following statements about spectral types of stars is not generally true?

A) The spectral type of a star can be used to determine its distance.
B) The spectral type of a star can be used to determine its surface temperature.
C) The spectral type of a star can be used to determine its color.
D) The spectral type of a star can be determined by identifying lines in the star's spectrum.


A) The spectral type of a star can be used to determine its distance.

Physics & Space Science

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Debris blasted from the impact of a crater is called ____

a. ejecta b. maria c. sinuous rilles d. multiringed basin e. central peak

Physics & Space Science

Which of the following involves the greatest heat transfer?

a. One gram of steam at 100°C changing to water at 100°C. b. One gram of ice at 0°C changing to water at 0°C. c. One gram of water cooling from 100°C to 0°C. d. One gram of ice heating from ?100°C to 0°C.

Physics & Space Science

The eighteenth-century naturalist Carolus Linnaeus is known for creating:

a. the theory of natural selection b. a system for naming and classifying organisms c. the biological species concept d. the first microscope e. the scientific method

Physics & Space Science

In the very first phase after the big bang, when the Universe was about a microsecond old, space was filled with____

a. high-energy photons b. protons and antiprotons c. protons, neutrons, electrons, and positrons (anti-electrons) d. electrons, and positrons (anti-electrons) e. protons, neutrons, electrons

Physics & Space Science