How many years passed between columbus’ voyage (1492) and the american revolution?

What is the line drawn on a production possibilities graph called?

According to this passage, what can be expected of people appointed as judges temporarily?

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.