Based on the Table of Contents, what information did people living in Baghdad in the 10th century have access to? What places did that information come from?

What battle in the civil war was known as the bloodiest war ?

Which of the following best explains why the rhine-ruhr area became a major industrial area ?

Which suggests the most critical aspect of the peak oil theory? 1) controversy rages over rumors that the fracking lobby in washington has influenced the statistics. 2) supporters and critics argue endlessly over the rate of extraction and shape of the bell curve. 3) saudi arabia will soon have to begin fracking, leading to protests and further destabilization. 4) a new oil discovery means a fresh peak cycle, making that region the target of aggressors.