Question

Match the following with their corresponding examples.

• A. Granite
• B. Perennial spring
• C. Sandstone

Answer 1

The main source of ground water is rain which permeates into the ground. Another type of water source is a perennial spring. The word perennial means that it is continuous and forever. There are some rocks like sandstone which are porous and allow water to pass through them. On the other hand, some rocks like granite are impervious. They restrict the flow of water through them.