He says the increase in milk production reached a high of more than six kilograms per cow per day.

VOA: special.2009.05.12

"In high income countries such as the United States, the U.K.and Australia,death rates are around forty-five per hundred thousand per year.

VOA: special.2009.09.28

He found that mangroves store about three to four times more carbon per hectare as temperate forests or even tropical rainforests.

VOA: special.2011.05.10

The goal with the new rickshaw is to increase the number of trips per day that the pullers can make.

VOA: special.2009.05.11

The team found levels of lead as high as thirty-two thousand parts per million in tests on some paint samples from Ecuador.

VOA: special.2009.08.31

Communities with the strongest policies had nine fewer employees per ten thousand community members than those with partial bans or none at all.

VOA: special.2009.05.27

Or you could plant the beans along rows of hills with four to six seeds per hill.

VOA: special.2009.03.24

Breathing in two hundred parts per million of carbon monoxide will cause the first signs of poisoning.

VOA: special.2011.01.25

Twelve thousand parts per million of the gas will cause death in one to three minutes.

VOA: special.2010.02.02

The solar-powered irrigation systems produced an average of nearly two metric tons of vegetables per month.

VOA: special.2010.01.11

But the Consumer Product Safety Commission has just lowered the limit to ninety parts per million.

VOA: special.2009.08.31

Until this past month, the safety standard for consumer paints was six hundred parts per million.

VOA: special.2009.08.31

Genetics may play a part. Researchers say Indians store more body fat per kilogram than Europeans.

VOA: special.2010.05.12

And the greatest risk reductions were in those who took more than fourteen aspirins per week.

VOA: special.2009.09.01