EVERYDAY SCIENCE

Detailed explanation-1: -The sedimentary rock cover of the continents of the Earth’s crust is extensive (73% of the Earth’s current land surface), but sedimentary rock is estimated to be only 8% of the volume of the crust. Sedimentary rocks are only a thin veneer over a crust consisting mainly of igneous and metamorphic rocks.

Detailed explanation-2: -On the other hand, the area of outcrop and exposure of sediment and sedimentary rock comprises 75 percent of the land surface and well over 90 percent of the ocean basins and continental margins.

Detailed explanation-3: -Sedimentary rocks, which include chalk, shale, clay, sandstone, and limestone, cover approximately 75 percent of the Earth’s surface.

Detailed explanation-4: -Answer and Explanation: Seventy-five percent of the land area of the Earth’s surface and almost all of the ocean floor is made up of sedimentary rock.

Detailed explanation-5: -Sediments are loose, unconsolidated rock particles and ions (i.e., charged atoms) dissolved in aqueous solutions. Sedimentary rocks, which constitute about 75% of all rocks exposed at the surface of the Earth, form when the particles are cemented together or when crystals precipitate from the solutions.