Содержание
- 2. Ecological dangerous tendencies air pollution acid rains the greenhouse effect water pollution deforestation disappearing animals littering
- 3. Smog – icky, brown air pollution that comes from cars and factories; it makes the air
- 4. The greenhouse effect – when gases from factories, electric power plants, and cars trap the sun’s
- 5. Acid rain – when harmful gases from cars and power plants are released into the air
- 7. Wastewater – water carrying dissolved or floating solids from homes, farms, businesses or industries.
- 8. Deforestation
- 9. Littering
- 10. 15 500 species are on the brink of extinction.
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