Question

What causes the big cracks in the rocks?


A. air


B. water

Answer 1

The primary cause of big cracks in rocks is usually **B. water**. Water can seep into cracks and crevices of rocks, and when it freezes, it expands, creating additional pressure that can lead to the growth of cracks. This process is known as freeze-thaw weathering. Additionally, water can lead to chemical weathering, which can weaken rock structure and contribute to cracking over time.

While **A. air** can contribute to weathering through processes like oxidation and the action of wind, it is typically the presence of water that plays a more significant role in the formation of large cracks in rocks.