GENERAL KNOWLEDGE

Detailed explanation-1: -Such deposits of silt are known as loess. Loess landscapes, such as the Great Plains, are usually a sign of past glacial activity.

Detailed explanation-2: -Sedimentary rocks are formed from pre-existing rocks or pieces of once-living organisms. They form from deposits that accumulate on the Earth’s surface. Sedimentary rocks often have distinctive layering or bedding.

Detailed explanation-3: -Sedimentary rocks are one of three main types of rocks, along with igneous and metamorphic. They are formed on or near the Earth’s surface from the compression of ocean sediments or other processes.