What is process in which water, wind, and heat break down rock?

Which layer of soil contains lots of roots and minerals for growing plants?

What is another name for the O horizon?

What is another name for the B horizon?

The name rock is given when it is broken down into smaller pieces.

A mineral's resistance to being scratched is called?

The important component of top soil made up of decayed plants and animals.

The type of soil made up of very fine pieces of rocks.

Soil is formed by the...................................of rocks.

What contains water, air, humus and tiny pieces of rock?

.............................. is a very hard rock.

What is the main component of soil that provides nutrients to plants?

Which type of rock is formed from the cooling and solidification of magma or lava?

What process involves the breaking down of rocks into smaller pieces by natural forces such as wind, water, and temperature changes?