The oldest known crustal materials, which are fragments from crustal rocks about 4.4 billion years old, are
A) volcanic rock fragments.
B) quartz crystals.
C) zircon grains.
D) uranium-bearing rocks.
Correct Answer:
Verified
Q10: The origin of Earth's Moon was
A) waves
Q11: The reason that Archean protocontinents were small
Q12: From those listed below, select the incorrect
Q13: The origin of Earth's early atmosphere was
Q14: Archean greenstone belts sit among masses of
A)
Q16: Meteorites made of iron with olivine crystals
Q17: The maria on the Moon were formed
Q18: Isotopic evidence shows that photosynthetic life existed
Q19: Our planet's early water ocean was formed
Q20: Evidence in the form of _ allows
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