Select all that apply. The K-T boundary in Zumaia, Spain is sharp--representing an abrupt change in the marine ecosystem. The K-T boundary separates rock layers of the Cretaceous period from those of the Tertiary period. The K-T boundary is a thin layer o

匿名用户最后更新于 2021-12-01 19:31 数学类Mathematics

Select all that apply. The K-T boundary in Zumaia, Spain is sharp--representing an abrupt change in the marine ecosystem. The K-T boundary separates rock layers of the Cretaceous period from those of the Tertiary period. The K-T boundary is a thin layer of clay found only in Gubbio, Italy. The K-T boundary dates to 65 million years ago (when the dinosaurs disappeared). Submit Request Answer

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Select all that apply. The K-T boundary in Zumaia, Spain is sharp--representing an abrupt change in the marine ecosystem. The K-T boundary separates rock layers of the Cretaceous period from those of the Tertiary period. The K-T boundary is a thin layer o

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