A) Volcano B) River C) Lake D) Sinkhole
A) River water B) Ocean water C) Rainwater D) Groundwater
A) Maya B) Aztec C) Inca D) Olmec
A) Red B) Black C) Turquoise D) Brown
A) Swimming B) Hiking C) Skydiving D) Skiing
A) MĂ©rida B) CancĂșn C) Tulum D) Valladolid
A) Sand dunes B) Hot springs C) Surfing waves D) Stalactites and stalagmites
A) Wood source B) Water source C) Mud supply D) Sand supply
A) Collapse of limestone bedrock B) Volcanic eruptions C) Coastal erosion D) Glacial activity |