11. Write what you think people must or mustn't do1. People mustn't dump their wastes in forests.2. People recycle things.3. People help endangered species to survive.4. People pollute rivers and oceans.5. People destroy animals' habitats.6. People make laws to protect nature.7. People cut down a lot of trees.8. People hunt animals for fun.9. People turn rivers into dumps.10. People protect wildlife on the Earth.
People mustn't litter in public spaces.12. People must support sustainable practices in agriculture and fishing.13. People must reduce their carbon footprint by using renewable energy sources.14. People must respect the natural environment and not harm wildlife.15. People must educate themselves and others about the importance of conservation.