EVERYDAY SCIENCE

Detailed explanation-1: -Soil is the material which is formed as the result of wethering hence it is not the agent of wethering and this is the right answer.

Detailed explanation-2: -Since these studies, the majority of textbooks and workers cite the sun as a possible, but not important source of cracking in surface rocks. New data, however, have begun to provide evidence that the sun may play a key role in the physical weathering of rocks at the Earth’s surface.

Detailed explanation-3: -Rocks expand when sunlight heats them during the day and contract as they cool down at night, causing stress that forms cracks that grow slowly over time.

Detailed explanation-4: -Weathering breaks down the Earth’s surface into smaller pieces. Those pieces are moved in a process called erosion, and deposited somewhere else. Weathering can be caused by wind, water, ice, plants, gravity, and changes in temperature.