Содержание
- 2. Main source of pollution The main source of environmental pollution is return to the nature of
- 3. Garbage near school there to hospital and cemetery. Unfortunately we see big dumps near school and
- 4. We know that all Kirovohrad region stands on uranium ore, it is necessary mind, as our
- 5. Understand any changes of physical, chemical and biological properties of water in connection with dumping into
- 7. Скачать презентацию