First the short candle stops burning, followed by the taller candle. Mixing soda and vinegar makes carbon dioxide, which fills up the bowl and pushes out the oxygen. ……

AS well as lighting up bulbs, electricity can also put out fires. Scientists from Harvard... principle might be that the electric field charges the carbon particles (微粒) in the flame ……

AS well as lighting up bulbs, electricity can also put out fires. Scientists from Harvard... principle might be that the electric field charges (充电) the carbon particles (微粒) in the flame ……

. Car emissions and garbage burning only take up 4 percent, the report said.Researchers studied...盐) – are responsible for 26 percent of Beijing’s PM2.5, Bejing News reported.Industrial pollution takes up 25 percent ……

no toys or presents at Christmas.”But things are different now. It is the burning desire to win that keeps him working hard on the field, rather than the pursuit of wealth. “I love football. It’s my life ……

to the movies tonight?Amanda: Telling her I’d do the washing up tomorrow night _______________.Burning question情境领悟：A: There’s a burning question that everybody wants the answer to: Are you dating Tom ……

(groundwater, air, rain, etc). One problem with landfills is that they take up a lot of land space... to process the waste.Burning garbage in plants is another way to get rid of waste. Burning reduces ……

and field trips, the soaring (暴涨) price of fuel is causing school districts across the US to cut back... district there has cut back on field trips, sports equipment, and other extra-curricular activities ……

will be dumped (倾倒) into garbage incinerators (焚化炉) and burned. Burning masks might not seem... (无毒的) and can break down easily. After burning, it turns into water and carbon dioxide (二氧 ……

semester, thousands of people set up a camp in the middle of the Nevada desert. They were there for a weeklong music and art festival.Held since 1986, Burning Man is an annual (一年一次的) late-summer event ……

Holiday, I was appalled to see piles of dried corn stalks burning in the field along the railway... for the local government to prevent the burning of these stalks. The government might collect them ……

Burning Man festival.“There is constant (持续的) music, people are dancing everywhere, and camps... and onlookers. Since then, Burning Man has grown into an international phenomenon.Every year ……

Don’t worry about burning the calories – that’s already been done. ……

. They open up the magnetic field (磁场), letting charged particles (带电粒子) escape into space. In fact... areas. They open up the magnetic field (磁场), letting charged particles (带电粒子) escape into space ……

.The report suggests growing crops that suck (吸收) up CO2. We could burn the crops for electricity, capture (捕获) the greenhouse gases produced during the burning and bury them underground. We could also plant ……