91.   Well-planned, intentionally set fires can be an effective tool to maintain some semblance of ecological balance, she said.

92.   Wannasak believes that this system is an effective training tool.

93.   Clarke said the leafleting has been an effective tool in the hunt for al-Qaeda leaders.

94.   Known for its benefits to heart disease sufferers, aspirin is also an effective tool in preventing cardiovascular problems, according to a British study to be published Tuesday.

95.   The foreign secretary also told reporters that Britain believed trade with Burma could be an effective tool to bring about democratic reforms there.