The Murchison meteorite contained
A) RNA.
B) living cells.
C) bacteria.
D) DNA.
E) 12 amino acids.
E
Physics & Space Science
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Reverberation is a phenomenon you would be likely experience while singing in the
A) shower. B) desert. C) tundra.
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Which of the following is the rate at which energy is transferred?
a. potential energy b. kinetic energy c. mechanical energy d. power
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At the Earth's north pole, the north celestial pole is directly overhead and stars near the horizon travel in straight lines
a. straight up from the horizon. b. straight up from the horizon slanting toward the right. c. straight up from the horizon slanting toward the left. d. parallel to the horizon.
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We know the Sun is primarily made from hydrogen and helium on the basis of its
A) luminosity. B) spectrum. C) age. D) color. E) mass.
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