| 11. | Organic matter and elemental carbon together constitute the carbonaceous fraction of aerosols.
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| 12. | A similar process has been demonstrated for nonbiological carbonaceous particles.
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| 13. | Its low albedo suggests that it is a carbonaceous asteroid.
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| 14. | Hoover said no one was sure where the Australian carbonaceous chondrite came from.
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| 15. | Carbonaceous chondrites comprise about 2 percent of the meteorites recovered from the Earth.
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| 16. | The Ningqiang carbonaceous chondrite contained sulfur-36 derived from chlorine-36.
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| 17. | The conversion efficiency can be rather low due to elutriation of carbonaceous material.
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| 18. | This indicates a composition similar to carbonaceous chondrite meteorites.
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| 19. | This means it probably has a primitive carbonaceous composition.
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| 20. | Asteroid 449 Hamburga is about in diameter and is a carbonaceous type asteroid.
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