WHEN WERE ALL THE CURRENT CONTINENTS A SINGLE ENTITY

Câu 80. When were all the current continents a single entity?

A.200 million years ago. B.180 million years ago.

C.500 million years ago. D.400 million years ago.

KEY

1C 2D 3D 4C 5A 6B 7A 8B 9A 10B

11C 12B 13C 14A 15A 16C 17D 18B 19A 20D

21A 22C 23D 24C 25B 26D 27A 28C 29A 30A

31A 32B 33B 34A 35B 36C 37D 38A 39C 40A

41C 42A 43C 44D 45A 46D 47A 48B 49D 50A

51C 52A 53A 54B 55A 56A 57A 58A 59C 60C

61C 62C 63D 64A 65C 66C 67D 68C 69A 70B

71D 72B 73A 74C 75B 76A 77D 78C 79A 80A

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GV Tôn Nữ Bích Vân