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

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

Preserving natural wonders is essential for protecting the environment and biodiversity. First, we must reduce pollution by limiting the use of plastic, recycling more, and using eco-friendly products. Second, conservation efforts should focus on protecting endangered species and their habitats. One way to do this is by creating national parks and wildlife reserves. Third, sustainable tourism is key; travelers should respect local ecosystems, avoid damaging activities, and support conservation initiatives. Finally, raising awareness about the importance of natural wonders can encourage people to take action. By working together, we can ensure that future generations will continue to enjoy the beauty of nature.