LONDON (Reuters) - European shares recovered on Tuesday after feeling the strain of a tech rout on Wall Street, while political risks in Europe helped the dollar as investors dumped riskier assets. The German share price index, DAX board, is seen at the stock exchange in Frankfurt, Germany, March 21, 2018. REUTERS/Tilman Blasshofer Fears of a peak in corporate earnings growth, softening global demand and rising interest rates in the United States have put investors on edge in the past month.