1.   Dogs are used to track the wolves to their lair in the forest.

2.   Alpha is a statistic used to track the value that a portfolio manager adds.

3.   Are they markers that can be used to track you back and forth, to and from Internet sites?

4.   As an amateur cyclist, I had long recognized that the handlebar-mounted computer that I use to track my training can be motivating or guilt-inducing.

5.   Before joining Centennial, he ran PSC Inc., a manufacturer of hand-held data collection devices that retailers and manufacturers use to track inventory.

6.   A credit bureau has been used to track down some Kansans.

7.   A pound of taggant can be used to track a ton of explosive.

8.   A problem with a radar dish used to track launch vehicles prompted the delay in the launch of the Lunar Prospector mission.

9.   A system used to track Amtrak trains had to be reset manually.

10.   But it could be used to track missiles fired toward the United States from North Korea, the report says.