Soil is made up of;
less than 2 mm
less than 1/16
Less than 1/236
2 mm or more
Soil is weathered material on Earth's surface in which plants can grow.
Soil forms as rock is broken down by weathering. It also mixes with other materials.
There are soil horizons.
A soil horizon is a layer of soil that differs in color and texture from the layers above or below it.
Develops from the
horizon when the plant roots weather the rock mechanically and chemically.
Develops as rain water washes clay and minerals from the
horizon to the
Forms as bedrock weathers and rock breaks up into soil particles.