Old crust is destroyed as it rolls down into the hot area and melts again.

VOA: special.2010.01.12

As the mulch breaks down, it provides material that keeps the soil from getting hard.

VOA: special.2009.06.30

And as it breaks down, it naturally releases nitrogen into the soil.

VOA: special.2010.06.01

Probably,if I had to come down as either for or against it at this point, I would be against it,".

VOA: standard.2009.10.21

But in the end, protests and peaceful revolutions, such as in Poland,and changes in Moscow brought it down.

VOA: standard.2009.11.09

But he says even as France cracks down on family migration and sends illegal immigrants back home, it is making it easier for highly-skilled immigrants to come in.

VOA: standard.2010.01.20

"One of the things that this study was really helpful to show is that the amount of added sugar,as it increases, the triglycerides go up and the HDL goes down."

VOA: standard.2010.04.25

The deal was widely seen as surrender to Taliban control of the valley, but it collapsed after militants refused to lay down arms and moved into neighboring districts to expand their influence.

VOA: standard.2009.07.26