X. Write the questions for the underlined words.
1. ________________________________________________ ?
Mount Everest is the highest mountain in the world.
2. ________________________________________________ ?
The Grand Canyon is in Arizona, USA.
3. ________________________________________________ ?
The Atacama desert receives 1 mm of rain per year. ?
4. ________________________________________________ ?
The Nile River is 6,650 kilometers long.
5. ________________________________________________ ?
Mt. Everest is over 60 million years old.
6. ________________________________________________ ?
Victoria Falls. Victoria Falls are twice as tall as Niagara Falls.
7. ________________________________________________ ?
Thien Duong Cave was discovered in 2005.
8 ________________________________________________ ?
Visitors can get to Angel Fails by boat.