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МатематикаПохожие
- 1. Cars, factories and power stations cause air pollution.
- 2. Pollution becomes acid when it mixes with oxygen and water in the atmosphere.
- 3. Polluted clouds stay in one place and do not move far.
- 4. Acid rain appeared a long time ago.
- 5. Acid rain can fall on trees, buildings, cars and clothes.
- 6. Acid rain exists only in the form of rain.
- 8. Acid rain helps trees grow faster.
- 9. Governments are not doing anything to reduce air pollution.
- 10. Acid rain can change the colour of the sky.
