By Caroline Valetkevitch NEW YORK (Reuters) – Stocks on global indexes rose sharply on Tuesday, with major U.S. stock indexes each ending up more than 2% following a recent selloff, while the Japanese yen fell against the U.S. dollar to its lowest level since October 1998. Wall Street climbed as participants returned from a long weekend, with investors buying up shares of megacap growth and energy companies hit last week by global economic worries. Energy shares climbed along with oil prices. Oil gained on high summer fuel demand. “After back-to-back weeks of 5% declines, you’ve pushed the bal…