China, Crescent Lake in the Singing Sand Dune

Crescent Lake, a natural wonder in the Gobi Desert, is renowned for its crescent shape and clear waters. Historically visited by explorers like Mildred Cable and Francesca French, the lake is a result of a natural wind-created depression. Despite low precipitation, it remains unburied due to unique geographical features. Legends speak of treasures like Iron back Fish and seven Stars Grass. The nearby Singing Sand Dunes produce musical sounds when disturbed, adding to the area's allure.

What is the shape of Crescent Lake often compared to?

• A crescent moon

• A full moon

• A square

• A star

Which theory explains why Crescent Lake is not buried by sand?

• Cross ventilation theory

• Evaporation theory

• Sedimentation theory

• Erosion theory

What is the annual precipitation of Crescent Lake?

• 100 millimeters

• 50 millimeters

• 500 millimeters

• 2400 millimeters

What are the Three Treasures of Crescent Lake?

• Iron back Fish, 5 Colored Sands, and seven Stars Grass

• Golden Fish, Red Sands, and Starry Grass

• Bronze Fish, Black Sands, and Sun Grass

• Silver Fish, Rainbow Sands, and Moon Grass

What phenomenon gives the Singing Sand Dune its name?

• The sand emits light

• The sand forms unique patterns

• The sand produces musical sounds

• The sand changes color