What physical characteristics of Mercury distinguish it among all the planets in our solar system?
What will be an ideal response?
Mercury has the most eccentric orbit of any of the planets. Mercury's orbital plane has the highest inclination to the ecliptic. Mercury is the smallest body considered a planet in the solar system.
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What type of geological activity is seen on Neptune's moon Triton?
a. Plate tectonics and earthquakes are a common occurrence on Triton. b. Volcanoes of molten lava, similar to Earth, have been seen there. c. Geysers of liquid nitrogen are seen erupting from its surface. d. Geysers of liquid water are seen erupting from its surface.
Exclusion Principle: How many possible sets of electron states (or quantum numbers) are there in the 5f subshell?
A. 2 B. 8 C. 10 D. 14
The atmosphere of Mars consists mainly of ________.
A. nitrogen B. carbon monoxide C. carbon dioxide D. oxygen
What direct evidence do astronomers have that supports the heavy element formation in stars?
A) The presence of technetium in giant star spectra B) Observed elemental abundances C) Gamma-ray emissions from decay of cobalt 56 in supernovae D) Light curves of type-I supernovae E) All of the above are evidence of this.