Across
- 3. The natural world around us (Môi trường)
- 4. to keep something safe (Bảo vệ)
- 6. able to continue without harming the environment (Bền vững)
- 7. variety of plants and animal life (Đa dạng sinh học)
- 9. dropping trash in public places (Xả rác)
- 10. when an area is covered with too much water (Lũ lụt)
- 11. Harmful substances in air, water, or land (Ô nhiễm)
- 12. natural, not using harmful chemicals (Hữu cơ)
Down
- 1. cutting down many trees (Phá rừng)
- 2. unwanted or leftover materials (Chất thải)
- 5. the natural home of plants or animals (Môi trường sống)
- 8. catching too many fish from the ocean (Đánh bắt quá mức)