Soil Horizons
The top layer of soil which is made up of dead plant matter for the most part.
What is the O or organic layer.
The freeze thaw cycle
What is frost wedging
Water
What is the most important cause of chemical weathering
The layer of soil with a lot of big rocks and is called the Parent Material.
What is the C layer.
The release of pressure from a rock called
What is unloading
Oxidation
What is a process of weathering that is centered around oxygen
The bedrock layer of soil.
What is the D layer.
Expansion in a rock because of heat
What is Thermal Expansion
Carbon Dioxide
What is something that becomes carbonic acid
The subsoil layer.
What is the B layer.
Living organisms cause weathering
What is Biological Activity.
Living Organisms
What is it called when plants and other living organisms release acid that slowly dissolves a rock
The layer of soil that is the second layer of soil.
What is the A layer.
Plants cause rocks to split and divide
What is Plant Growth. plants cause rocks to split and divide
Acid Rain
What is a burning oil/gas to produce polution