1. ____ can make it difficult for plants to grow properly in the ground. 2. Protecting ____ is important for maintaining a healthy ecosystem on Earth. 3. Many cars in the city ____l, which contributes to air pollution and climate change. 4. The rapid increase in population can ____t many natural resources we rely on daily. 5. ____ paper and plastic helps reduce waste and protect the environment we live in. 6. Scientists are worried that some animals may face ____ if their habitats continue to disappear. 7. Pollution poses a serious ____ to the health of both humans and wildlife everywhere. 8. ____ is causing many animals to lose their homes, leading to a decline in wildlife. 9. During the cleanup, we collected ____ to keep the area free from toxins. 10. ____ is a serious issue that affects life on our planet every day. 11. ____ is essential for a healthy environment, as it supports various plant and animal life. 12. ____ can turn fertile land into desert, making it hard for people to grow food. 13. Using ____, like wind and solar, can help reduce greenhouse gas emissions. 14. ____ ensures that the needs of the present do not harm future generations. 15. In many cities, ____ lack basic services, such as clean water and adequate housing. 16. A good ____ is vital for keeping communities healthy and preventing diseases. 17. The hotel was able to ____ all of its guests despite the unexpected large crowd. 18. Farmers work hard to grow ____ that can feed their families and support their communities. 19. Protecting an animal's ____ is crucial for its survival in the wild or in captivity. 20. ____ from vehicles pollute the air, making it unhealthy for everyone to breathe.

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