Which group benefited the most from the Colombian exchange; Amerindians of the New World or Europeans of the Old world?

Read the excerpt from "mending wall." we keep the wall between us as we go. to each the boulders that have fallen to each. and some are loaves and some so nearly balls we have to use a spell to make them balance: "stay where you are until our backs are turned! " we wear our fingers rough with handling them. oh, just another kind of out-door game, one on a side. it comes to little more: there where it is we do not need the wall: he is all pine and i am apple orchard. what does the line “and some are loaves and some so nearly balls” refer to?

Can someone me translate this latin? marcus delphos, qui est in graecia, iter est facturus. est iter difficile, sed in delphis sunt multa nova videre. verba apollinis audire cupit. delphi est locus qui apollini sacer est. pupulia fidei ex omnibus partibus terrae delphos, domus dei. veniunt et auxilium petunt. sacerdos marco responsa verbis donabit. etiam, in delphis, templa, thesauros, et fontem sacrum apollini muisique visurus est. tum, omnibus visis, marcus discedet et si responsum erit verum videre exspectabit.

Malayalm story 'kaalakal'by p.k bhaskaran. can you give the summary or can you say what's the chapter about? someone reply