Earth's Most Extreme Environments

Earth's Most Extreme Environments trivia questions

1. What is the highest point on Earth, featured in Planet Earth?
2. Which desert, shown in Planet Earth, is the driest place on Earth?
3. In Planet Earth, which ocean is referred to as the deepest part of the world's ocean?
4. What is the hottest inhabited place on Earth, featured in Planet Earth?
5. Which polar region, shown in Planet Earth, is the coldest place on Earth?
6. In Planet Earth, which rainforest is referred to as the world's largest tropical rainforest?
7. What is the largest coral reef system, featured in Planet Earth?
8. Which cave, shown in Planet Earth, is the deepest known cave in the world?
9. In Planet Earth, which river is referred to as the world's longest river?
10. What is the largest salt flat on Earth, featured in Planet Earth?