GLOBAL MARKETS-Stocks retreat a second day on growth worries, copper slips

(Adds close of U.S (Other OTC: UBGXF – news) . markets)
* Europe stocks led lower by miners, Asia closes lower
* Weak data rekindles growth and deflation fears
* Metals prices fall; Brent crude settles lower
By Herbert Lash
NEW YORK, May 4 (Reuters) – Global equity markets fell for a second straight day on Wednesday on mostly weak economic data while metals prices slipped on renewed concerns of a downturn in global growth.
The U.S. services sector expanded in April as new orders and