between 1959 and 1962, 200,000 cubans immigrated to the united states to thus day , many cubans attempt to immigrate to the u. s. what is the primary reason why Cubans immigrate to the US??? PLZ HELP ASAP

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.