Question

Sedimentary rocks account for about what percentage of the Earth's outermost 10 kilometers of rock (first percentage). Also, what percentage of the Earth's continental area is covered by sedimentary rocks (second percentage)?

Answer 1

Answer: Sedimentary rocks make up 75 percent of the rocks at the earth's surface but only 5 percent of the outer 10 miles of the earth. Sediment, as distinguished from sedimentary rock, is a collective name for loose, solid particles and is generally derived from weathering and erosion of preexisting rock.

Answer 2

Answer:

5% and 75%

Explanation:

The outermost 10 kilometers of rock according to geographers has about 5% of sedimentary rocks.

The continental area of the Earth represents the Earth surface and the total land area of all continents is about 148,647,000 square kilometres.

Geographers also discovered that sedimentary rocks make up 75% of the rocks at the entire earth's surface not focusing on the outermost 10 kilometers of the Earth surface.