31.   In the oil-drilling region, open flames roar out of pipes jutting over murky pools, burning off gas to separate water from the crude oil.

32.   In warm weather, children can burn off energy outdoors.

33.   Inside is a tiny catalytic converter that burns off all the ash and waste to avoid emitting smoke.

34.   Kids need time to run around on a playground to burn off pent-up energy.

35.   Jeter said a passenger whose clothes had been burned off walked barefoot to his front door.

36.   Like a shivering animal, a blossom burns off carbohydrates to keep warm, cranking away at one watt.

37.   Like him, we could once eat nasty foods as if they were stockpiled nuclear weapons and burn them off flipping TV channels.

38.   Not only does it burn off calories, but it is time spent not eating.

39.   Now researchers in New Mexico have come up with a less damaging technique that burns off surface contaminants with atomic oxygen.

40.   One central question is whether the government should be more willing to start controlled fires, to burn off built-up fuels.