Select the most appropriate option to substitute the underlined segment in the given sentence.
A thin layer of substance called soil maintains the level of the Earth and is where plant roots are found.
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. covers the surface.
- The sentence implies the role of soil as a layer that covers the surface of the Earth.
- Thus, "covers the surface" correctly describes the same.
- The surface refers to the outside part or uppermost layer of something.