Which two large landmasses formed when Pangaea first started to separate?

Determine the mass of fuel required for the expected energy consumption in the united states for the next ten years. energy use per person per year in the united states = 3.5 x 1011joules base calculations on current population of 310,000,000.

What are the first three quantum numbers for the electrons located in subshell 2s?

How do dying stars contribute to the formation of planets