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kittycat92
kittycat92
26.11.2020 • 
Biology

Which words goes to what number? Asteroid, meteorite, craton, Canadian shield, differentiation, microcontinent, Precambrian shield, banded-iron formation, stromatolite, Ediacaran Biota
1)fossils of various multicellular organisms from about 630 Mya
2)the top of a craton exposed at Earth's surface
3)Metallic or silica rich object that bombard early Earth, generating heat energy
4)a small fragment of an orbiting body that has fallen to Earth; generating heat; does not completely burn up in Earth's atmosphere and strikes Earth's surface; sometimes causing an impact crater
5)a small fragment of granite rich crust formed during the Archean
6)name given to the Precambrian shield in North America because much of it is exposed in Canada
7)Alternating bands of iron oxide and chart; and cherty; an iron-poor sediment rock
8)continental core formed from Archean or Proterozoic microcontinents; deepest and most stable part of a continent
9)process in which a planet becomes internally zoned, with the heavy materials inking toward the center and the lighter materials accumulating near its surface
10)large mat of mound composed of billions of photosynthesizing cyanobacteria that dominated shallow oceans during the Proterozonic

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