CANADA STOCKS-TSX declines on rising geopolitical worries

* TSX down 49.85 points, or 0.33 percent, at 14,976.92 * Six of 10 main index sectors decline * Encana jumps 2 percent after announcing takeover deal By John Tilak TORONTO, Sept 29 (Reuters) - Canada's main stock index dropped on Monday, extending the previous week's slide as worries about democracy protests in Hong Kong drove up market volatility, pulling down shares of financial and mining companies. Hong Kong protesters defiantly stood their ground in the face of tear ga