1.   The fire was ignited by sparks.

2.   The chemistry had been between them from the start, waiting only for a wayward spark to ignite it.

3.   Andrew Morton was badly burned when a spark from his welding-torch ignited a fuel line.

4.   A spark of romance ignites.

5.   According to the story, a man was torched when a spark from his phone ignited gas fumes while he was filling up.

6.   Afterward, they strike up a conversation, and Matthias takes the pair to a nightclub, where the romantic spark ignites while Tommy gets drunk.

7.   Carrying extra gasoline in that manner is illegal in many places because gas is so volatile that sparks can ignite its fumes.

8.   Even if a spark ignited the gas, proponents said, it would burn away rapidly and cause less damage than gasoline.