The cloud of dust and gas from which the Solar System formed was about 92% ____.
A) silicon
B) oxygen
C) hydrogen
D) carbon
Correct Answer:
Verified
Q15: The solid portion of a comet is
Q16: _ was reclassified as a dwarf planet
Q17: The _ planets are composed primarily of
Q18: Jupiter, Saturn, Uranus, and Neptune are known
Q19: The atmosphere of Venus is _.
A) hot
Q21: Mercury is pockmarked with meteorite craters, while
Q22: Scientists deduce that Jovian weather is driven
Q23: Why has Earth remained geologically active compared
Q24: The tens of thousands of small orbiting
Q25: The Moon formed _.
A) before Earth formed
B)
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