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meteoritesPhys Org
•
85% Informative
Meteorites and comets have contributed to Earth 's history or our knowledge of it.
They have allowed us to estimate the age of our planet, and changed the course of evolution more than once.
The most plausible theory for the beginning of life on Earth is based on simple organic compounds that formed in space and were brought to Earth by meteorites.
Pallasites are rare, and contain a silicate mineral called olivine embedded in nickel-iron alloys.
They form in the boundary between the core and mantle-like regions of differentiated asteroids.
Witwatersrand rocks in South Africa host the world's largest known gold reserves.
The Vredefort impact crater is the largest known impact structure on Earth .
VR Score
89
Informative language
90
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49
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English
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49
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long-living
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19
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13
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