They spit chemicals into the air that combine with stuff in the atmosphere to give us rains and snows containing nitric and sulfuric acids. These rains can make small lakes, streams, and wetlands more acidic and a whole lot less hospitable for wildlife. Frogs need water. Frog eggs are laid in water. Tadpoles hatch, live, and breath in water .
Adults spend much of their lives hunting, mating, hiding, living and breathing in water.
One study found that even slightly acidic conditions may deform or kill tadpoles. Acidic conditions have been linked to the decline of the natterjack toad in England. Next End Pollution Pollution wears many faces. There are direct sources like dumping and factory pipes, and indirect sources like pesticide run-off from farms and weed killer or motor oil from storm drains. If pollutants don't kill the frogs right away, they may affect their insides and cause problems down the road.