1. The Mekong Delta is home to a rich variety of wildlife.
2. She asked students if they understood English grammar well.
3. He asked what the best time to visit the Amazon Rainforest was.

1. Last week, the ranger showed the group the tree which is native to the area.
2. This course includes activities whose purpose is to improve speaking skills

To preserve natural wonders, everyone must play a role in protecting the environment. First, reducing pollution is essential. We can do this by disposing of trash properly, using eco-friendly products, and avoiding plastic waste. Second, supporting conservation efforts, like planting trees and participating in clean-up campaigns, helps restore the beauty of natural areas. Additionally, educating ourselves and others about the importance of preservation encourages greater respect for nature. Governments should also implement strict laws to prevent deforestation, over-exploitation, and illegal activities that harm natural wonders. As visitors, we must follow guidelines, avoid damaging wildlife, and refrain from littering. By working together, we can ensure that these precious gifts of nature remain for future generations to admire.