soil horizon

Pronunciation

Noun B2 Upper-intermediate

A distinct layer of soil, running roughly parallel to the surface, with its own texture and composition.

"The topsoil horizon was rich and dark, while the layer beneath it was pale and rocky."

Test yourself

Which word fits the gap? "The top_____ was rich and dark, while the layer beneath it was pale and rocky."

Answer: soil horizon

In your own words, what does "soil horizon" mean?

A distinct layer of soil, running roughly parallel to the surface, with its own texture and composition.