Question

Your friend Priya has a rock that she took from a beach in the Mediterranean Sea. She keeps the rock in her garden. A few weeks later, she tells you that the rock has started to crack and lose its colour. She doesn't know why this has happened. How would you explain the process of weathering of rocks to your friend?

• A. Weathering is a process of breaking down of rocks and minerals on the Earth's surface.
• B. The rocks cracked due to the change in weather. It would not have cracked if it was left in the Mediterranean beach.
• C. The damage to the rock can be reversed.
• D. Weathering can occur due to physical, chemical or biological factors.

Answer 1

Answer: (A), (D)

The correct options are
A Weathering is a process of breaking down of rocks and minerals on the Earth's surface.
D Weathering can occur due to physical, chemical or biological factors.

Weathering describes the breaking down of rocks and minerals on the surface of the Earth. It is caused by the action of elements of weather and climate over earth materials. Weathering can occur due to three main types of factors. These factors can be physical, chemical and biological. Rocks around the Earth are subject to weathering. Weathering of rocks is an irreversible process.