In two to three paragraphs, develop an argument that explains the significance of the end of the Cold War in the transition from bi-polar to multi-polar centers of power

Why is the huronian supergroup rock formation particularly interesting to scientists? because it looks like a cross-section of a giant, stone encyclopedia because it formed during the period when oxygen began to accumulate in the atmosphere because it contains unusually large amounts of oxygen and sulfur because it dramatically altered the planet's development when it first formed