- 1. Which region of Mexico is known for its extensive underground river systems?
A) Mexico City
B) Chiapas
C) Yucatán Peninsula
D) Baja California
- 2. What is the name of the largest underground river in the Yucatán Peninsula?
A) Cenote Dos Ojos
B) Sac Actun
C) Rio Secreto
D) Cenote Ik Kil
- 3. What natural feature often indicates the presence of an underground river?
A) Deserts
B) Mountains
C) Cenotes
D) Lakes
- 4. What is the term used for the entrance to an underground river?
A) Cenote
B) Riverbank
C) Spring
D) Estuary
- 5. Which underground river is known for its stunning stalactites and stalagmites?
A) Cenote Samula
B) Cenote Sagrado
C) Cenote Xkeken
D) Rio Secreto
- 6. Which popular tourist location features underground rivers and cenotes in the Riviera Maya?
A) Tulum
B) Xcaret
C) Chichen Itza
D) Coba
- 7. What substance primarily contributes to the acidity of rainwater affecting limestone?
A) Carbon dioxide
B) Sulfur dioxide
C) Methane
D) Ozone
- 8. Which ancient civilization used cenotes for rituals and sacrifices?
A) Zapotec
B) Olmec
C) Maya
D) Aztec
- 9. In which state is the Grutas de Tolantongo located, famous for its thermal waters?
A) Oaxaca
B) Guerrero
C) Hidalgo
D) Veracruz
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