Ответы и объяснения

2014-04-12T15:29:08+04:00
1. It's in North West Arizona, USA
2. The Colorado River
3. Six million years
4. 446km
5. 29km
6. 1800m
7. I can raft through the canyon
8. Yes it is
9. 50 degrees celcium
10. Two billion years