Which statements about the magna carta are true? choose all answers that are correct. a. the magna carta formally recognized the nobles' ancient rights and limits on taxation. b. the great council had king john executed when he refused to sign the magna carta. c. the magna carta legalized the idea that not even the king of england had absolute power. d. richard the lion-heart forced the english barons to sign the magna carta.

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.