Question

which of the following is formed when an unconfined, or freely flowing, aquifer intersects the earths surface?
a sinkhole
a spring
a desert
a valley

Explanation:

When an unconfined aquifer intersects the Earth's surface, water can flow out naturally, forming a spring. A sinkhole is formed by collapse of surface material into an underground void. Deserts are dry - land regions with low precipitation. Valleys are depressions between hills or mountains.

Answer:

B. a spring