What does the existence of coal beds in antarctic mean

Determine the number o moles of ions/atoms/particle in the following: 2.50 miles of k2s (let me know how to do)

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

The graph indicates the running route for tobias. which best describes his run? from time 0 to 6, he went fast and then slowed down. from time 6 to 10, he was at his slowest. from time 12 to 14, he went very slow. from time 14 to 18, he went toward the starting point.