Soil Horizons and Profiles

Front

Soil is made of_______________

Back

broken down rocks and decaying organic matter

Front

Horizon C is a mixture of ___________________.

Back

solid rock

Front

Why are earthworms important for soil?

Back

They break down organic material helping add nutrients to the soil

Front

Horizon A is made up of ____________________?

Back

topsoil

Front

In which horizon can we find the roots of most plants?

Back

Horizon A

Front

What is the top layer of soil called?

Back

Topsoil

Front

What is humus?

Back

Decomposed organic matter that enriches soil.

Front

What is the role of soil in the ecosystem?

Back

Soil supports plant growth and provides habitat for organisms.

Front

What is subsoil?

Back

The layer of soil beneath the topsoil, rich in minerals.

Front

What is bedrock?

Back

The solid rock layer beneath the soil layers.