Question ID:PT10 S1 Q7 Passage:Slash-and-burn agriculture involves burning several acres of forest, leaving vegetable ash that provides ample fertilizer for three or four years of bountiful crops. On the cleared land nutrients leach out of the soil, however, and the land becomes too poor to support agriculture. New land is then cleared by burning and the process starts again. Since most farming in the tropics uses this method, forests in this region will eventually be permanently eradicated. Stem:The argument depends on the assumption that Correct Answer Choice:AChoice A:forests in the tropics do not regenerate well enough to restore themselves once they have been cleared by the slash-and-burn method Choice B:some other methods of agriculture are not as destructive to the environment in tropical regions as the slash-and-burn method is Choice C:forests in the tropics are naturally deficient in nutrients that are needed to support the growth of plants that are not native to those regions Choice D:slash-and-burn agriculture is particularly suitable for farming in tropical areas Choice E:slash-and-burn agriculture produces a more bountiful crop than do other agriculture methods for the first year