Understanding the Relationships Between Words - Quiz - Level F
Choose the word that correctly completes the analogy.
common : scarce :: human-made : _
G
process
cavern
Caves can be formed many ways.
Some caves are caused by
erosion. Waves crashing against a
rock for millions of years erode, or
wear away, the rock, forming a
cave. Fuller Caverns was formed
when water combined with acids.
Over time, this water-and-acid
solution dissolved the limestone.
This natural process is called
dissolution. Limestone is the most
common type of rock from which a
natural
chalk