SSC MTS EXAM

Detailed explanation-1: -Weathering is the breaking down or dissolving of rocks and minerals on Earths surface. Once a rock has been broken down, a process called erosion transports the bits of rock and minerals away. Water, acids, salt, plants, animals, and changes in temperature are all agents of weathering and erosion.

Detailed explanation-2: -Physical weathering, also known as mechanical weathering or disaggregation, is the process class that causes rocks to disintegrate without chemical change. Abrasion (the process by which clasts and other particles are reduced in size) is the primary process in physical weathering.

Detailed explanation-3: -Sedimentary rocks are formed from broken pieces of rocks. These broken pieces of rock are called sediments. The word “Sedimentary” comes from the root word “Sediment". Sedimentary rocks are usually formed in water.

Detailed explanation-4: -There are four main types of weathering. These are freeze-thaw, onion skin (exfoliation), chemical and biological weathering. Most rocks are very hard.