But Mister Zundt says reducing air pollution and acid rain will reduce respiratory illnesses for people in the city.

VOA: special.2009.09.07

The experts said women who wish to become mothers should take folic acid to prevent problems in their babies.

VOA: special.2009.04.21

We stopped in the afternoons to fish for a few minutes in little rivers turned black by the acid of cypress trees.

VOA: special.2010.01.30

At the same time, doctors warn that acid in aspirin can cause bleeding in the stomach and intestines.

VOA: special.2009.10.20

Domoic acid can also cause neurological disorders and death in animals that eat fish poisoned with the neurotoxin.

VOA: special.2011.03.15

Boric acid has been used to kill other insects including cockroaches, termites and ants inside homes since the middle of last century.

VOA: special.2011.02.23

"It contributes to smog,acid rain, loss of biodiversity, dead zones along the coast, global warming, stratospheric ozone depletion.

VOA: special.2011.04.05

Soil should also be tested for its pH level, a measure of the acid and alkaline balance.

VOA: special.2009.06.09

Later,the water and most of the acid left the caves as the Guadalupe Mountains continued to rise.

VOA: special.2009.12.07

Yet,it took some time for the team to confirm that the amino acid glycine came from space.

VOA: special.2009.09.30

Scientists are testing bone from Nikumaroro to learn if DNA, deoxyribonucleic acid, can be recovered from it.

VOA: special.2011.01.18

But it is the first time an amino acid has been discovered on a comet.

VOA: special.2009.09.30

Then they made small changes to the bacterium's deoxyribonucleic acid -- DNA for short.

VOA: special.2010.07.20

In the eighteen hundreds, researchers discovered how to make salicylic acid from the chemical.

VOA: special.2010.12.14