How do scientists use fossil evidence to determine when species were present on earth

Which statement describes john tuzo wilson’s contribution to the theory of plate tectonics? he proposed that plates carry parts of the seafloor. he theorized that pieces of earth move for a limited time. he suggested that the asthenosphere is broken into segments. he observed seafloor cracks similar to existing cracks in the continents.

Countries trade with each other because resources are not evenly distributed across the globe. true or false

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