FILL-IN 16. -first suggested in 1885 that South America, Afnca, India, Australia
ID: 285892 • Letter: F
Question
FILL-IN 16. -first suggested in 1885 that South America, Afnca, India, Australia, and Antarctica had once been a single landmass, and he gave the name to this proposed supercontinert flora was the name given to the group of plant fossils which was considered as evidence for the supercontinent Gondwana. 18. The scientist who is credited with first seriously proposing continental drift earlier this century was 19. is the name Wegener proposed for the supercontinent that was comprised of all of the contincnts 20. A plate boundary is a collisional boundary between two plates, in most cases where plate subduction is occurring. The maximum age for oceanic cru Pangaea began to fragment in the 21· is mallion ycars 22. Period. 23. within the is believed to be the mechanism for plate movemen. along plate boundarics. 24· Old, cold and dense oceanic crust is destroyed by 25. New crust is formed along plate boundary runs through the state of Califormia and it is named the ault. 26. A 27. The driving mechanism of plate tectonics is not well understood, but the two proposed models both imvolve CRITICAL THINKING 28. Why is plate toctonic theory so widely accepted? 29. What was the principal reason wly Wegeners theory of coatinental drif was rejectod? 30. Briefly explain why the movement of continents over gologic time was the best explanstion for polar wandenng.Explanation / Answer
16) Edward Suess, Gondwana land
17) Glossopteris
18) Alfred Wegner
19) Pangea
20) Convergent
21) 180
22) Triassic
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