| / Eureka! An Encyclopedia … & Inventions [Macintosh]
/ MacWin_Anglia_Eureka_AnEncyclopediaOfDiscoveriesAndInventions.iso / pc / shared / _ab / res6 / res13
| < prev | next > |
| Comma Seperated Value File | 1996-07-09 | 706b | 3 rows |
| # | ††††In 1961 evidence of increased acidity in Scandinavian and American lakes came to light. The chemistry of the lake waters had been changed | resulting in the death of many plants and animals. |
|---|---|---|
| 1 | The cause of this problem is thought to be acid rain. This occurs when acidic particles in polluted air dissolve in water vapour. When the water falls as rain | it is a weak acid which kills plants and animals and damages buildings. |
| 2 | Today governments are taking measures to reduce the effects of pollution by placing restrictions on waste gases produced by industry. They are also targeting other major causes of pollution such as cars | which can be fitted with catalytic convertors to clean their exhaust smoke. |