Environmental problems. Acid Rains
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Environmental problems. Acid Rains

Every year more and more plants and animals disappear never to be seen again. Strangely, it is the most intelligent but most thoughtless animal that is causing most of the problems - man. Nature is very carefully balanced, and if this balance is disturbed, animals can disappear alarmingly fast. Every day, thousands of species of animals draw closer to extinction.

In many lakes the fish is dying. Fishermen are worried because every year there is less fish and some lakes have no fish at all Scientists are beginning to get worried too. What is killing the fish?

The problem is acid rain. Acid rain is a kind of air pollution. It is caused by factories that burn coal or oil or gas. These factories send smoke high into the air. The wind often carries the srnoke far from the factories. Some of the harmful substances in the smoke may come down with the rain hundreds of miles away.

The rain in many places isn't natural and clean any more. It's full of acid chemicals. When it falls in lakes, it changes them too. The lakes become more acidic. Acid water is like vinegar or lemon juice. It hurts when it gets in your eyes. It also kills the plants and animals that usually live in the lake water. But dead fish may be just the beginning of the problem. Scientists are finding other effects of acid rain.             

1. Is nature carefully balanced?
2. Does air pollution affect animals or plants?
3.  Acid rain is a kind of air pollution, isn't it?
4.  The rain in many places isn't natural and clean any more, is it?   
5. What is acid water like?
6. Do  acid rains fall in your region?
7. Do they hurt people or kill animals?
8. Acid rain is the only effect of air pollution, isn't it?
9.  People don't know much about air pollution, do they?
10. What do you know about air pollution?