11.   These give off ethylene gas which reacts with the starch to speed up its conversion to sugar.

12.   Also, the foot mechanism allows some heel-to-toe bend, storing and giving off energy as the wearer walks.

13.   Americium, a radioactive substance created by plutonium when it gives off its radiation, has already turned up in the river, she said.

14.   And the technology sometimes fails or gives off false alarms that make nurses run from their stations for nothing.

15.   And the water surrounding the island is pristine, so blue it almost gives off a neon glow.

16.   Are they the same cicada, giving off their night sound?

17.   As the Federal Reserve showed Tuesday with its surprising decision to leave interest rates unchanged, the economy is giving off mixed and confusing signals.

18.   As the trees warm up, they give off infrared radiation that melts nearby snow, forming circular depressions around their trunks.

19.   Both music and dance have seven sections, and Ictus, the music ensemble, plays wind instruments arranged to give off several sounds at once.

20.   A confit often involves lots of fat, but onions give off so much liquid you need very little, just a few tablespoons of olive oil.