Gold prices fell on Friday and were on track for a second straight weekly decline, pressured by a firmer US dollar and elevated Treasury yields, while investors awaited key US payrolls data for clues on the Federal Reserve’s policy path. Spot gold fell 0.6% to $4,154.78 per ounce by 0205 GMT and was down more than 3% for the week so far. US gold futures lost 0.4% to $4,184.00. The US