The rain that falls today is not (1) exatly
the same as that which fell on Earth hundreds of years ago. Rain is (2) increassinly
being acidified by pollution which (3) came
from factories, cars, our homes and power stations.
Ordinary rainwater is already slightly acidic. However, in severely (4) polluting
areas, the rain is as acidic as lemon juice or vinegar. Acid rain can (5) caused
damage to trees, lakes, (6) wildlive
, buildings and human health.
The term "acid rain" (7) did
not only include the wet rain we see and feel. It also covers acid snow, hail, mist and fog.
Acid pollution is a (8) globle
problem. Many governments (9) has
realised the seriousness of the problem and are introducing (10) maresures
to ensure they act more responsibly.