The rate at which air temperature changes with altitude is called
a. the inversion rate.
b. vertical development.
c. the lapse rate.
d. an isotherm.
c
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To create the above spectra, which of the following is NOT true?
a. A dense gas is excited and the light produced is over all wavelengths.
b. A low-density gas is excited and the light produced is over discrete wavelengths.
c. Light from a low-density gas passes through a warm, dense gas and the light that is produced is at all wavelengths except for a few discrete wavelengths.
d. All of the other choices are not true.
Suppose you view the solar system from high above Earth's North Pole. Which of the following statements about planetary orbits will be true?
A) All the planets orbit counterclockwise around the Sun. B) The inner planets orbit the Sun counterclockwise, whereas the outer planets orbit the Sun clockwise. C) All the planets except Uranus orbit the Sun counterclockwise; Uranus orbits in the opposite direction. D) The inner planets orbit the Sun clockwise, whereas the outer planets orbit the Sun counterclockwise.
Alpha decay reduces the atomic and mass numbers respectively by how much?
A) 4, 2 B) 2, 2 C) 2, 4 D) 4, 4 E) 2, 6
Most of the deuterium formed right after the Big Bang
A) broke down into electrons and neutrons. B) was found in the globular clusters. C) turned into dark matter. D) is still around today. E) quickly burned into helium nuclei.