EVERYDAY SCIENCE

Detailed explanation-1: -A Wind. B Water. C Living things. D Sunlight. Weathering is the process of breaking down of rocks into smaller pieces. Wind, water, plant roots and heat are all factors that influence weathering. Water, sunlight and wind breaks rocks to form sand.

Detailed explanation-2: -Wind can cause weathering by blowing grains of sand against a rock, while rain and waves cause weathering by slowly wearing rock away over long periods of time.

Detailed explanation-3: -Water, ice, acids, salts, plants, animals, and changes in temperature are all agents of weathering. Once a rock has been broken down, a process called erosion transports the bits of rock and mineral away. No rock on Earth is hard enough to resist the forces of weathering and erosion.

Detailed explanation-4: -Chemical weathering is caused by rain water reacting with the mineral grains in rocks to form new minerals (clays) and soluble salts. These reactions occur particularly when the water is slightly acidic.

Detailed explanation-5: -Heat, water, wind, living things, and other natural forces cause weathering. Over many years, weathering can shape rock into unusual formations. Weathering is responsible for many rock arches and hoodoos (lumpy columns), such as those found in Utah’s Arches and Bryce Canyon national parks.