Les causes des inégalités

People make choices about how to use resources.

About 140,000 japanese died in this japanese city when americans dropped an atomic bob at the end of world war ii

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