----- Nội dung ảnh ----- Practice 1: Fill each gap with one word/phrase given
1. **Pollution** is a serious problem everywhere. 2. We should avoid dumping waste into lakes and rivers to **reduce** water pollution. 3. We shouldn't throw away **single-use** products but recycle them. 4. **Carbon dioxide** is the amount of carbon dioxide we release into the environment. 5. We hope a lot more people join our **environmental program**. 6. People in my neighborhood are doing a lot to save **endangered species**. 7. This National Park provides a rich **habitat** for marine life. 8. Forests help release oxygen and absorb **carbon footprint**; they also provide homes for many species. 9. **Cutting down trees** is a serious environmental concern as it harms natural habitats. 10. An **ecosystem** may be a whole forest, or a small pond, and it can be of any size.