A) A cave in Puerto Rico B) A type of bird C) A historical fortress D) A mountain range
A) Mexico B) Puerto Rico C) Cuba D) Dominican Republic
A) Hidden Cave B) Cave of Wonders C) Mountain Cave D) Window Cave
A) Volcanic activity B) Tectonic uplift C) Glacial erosion D) Karst formations
A) In winter B) During the dry season C) At night D) During the rainy season
A) Subway trains B) Helicopter rides C) Boat trips D) Guided tours
A) Pollution B) Tsunamis C) Cold weather D) Earthquakes
A) Limestone B) Sandstone C) Granite D) Basalt
A) Arecibo B) San Juan C) Ponce D) Mayagüez |