The NASA team still is not sure how much of what they have found is water and how much is hydroxyl.

VOA: special.2009.09.30

How many hours a day the pump needs to be operated depends on the season and how much water is needed for crops.

VOA: special.2009.08.17

The document tells how the seven states would share the water of the Colorado River.

VOA: special.2009.08.12

It will attempt to learn how much water is in Jupiter's atmosphere.

VOA: special.2011.03.29

It is how the body releases water to cool the skin.

VOA: special.2010.07.27

Scientists have discovered more details about how plants use water.

VOA: special.2010.01.26

"Kids really get engaged in science in the garden where it's a kind of fun activity where they're collecting data and seeing how different temperatures will change the amount of water that's needed by a crop, so the science concepts come easily."

VOA: special.2011.06.14

"There are different ways of evaluating how well stormwater practices clean water things like ponds and wetlands and permeable pavement."

VOA: standard.2010.08.04

They are learning how to identify biodegradable garbage, how to make compost, and how to water the trees they have planted in the schoolyard.

VOA: standard.2010.04.01

Bill Hunt,a professor of Biology and Agricultural Engineering at North Carolina State University, has developed an easy-to-use computer model to predict how landscape impacts water pollution.

VOA: standard.2010.08.04

And now we face global challenges. How do we address water issues?

VOA: standard.2009.11.03

"I want the people of Haiti not to worry about how they are going to eat today, whether they can get water today, whether their kids are going to be hungry today."

VOA: standard.2010.01.28