Soils Unit

Two natural factors that cause erosion are...

8-14 on a pH scale is considered ________.

Blueberries and Azaleas prefer_____soil.

I am going to prepare for the test by___.

An ideal soil is made up of ___% Mineral Matter

Soil is a renewable resource.

A pH scale is used to measure the concentration of __________.

pH is the measure of __________ in a substance.

Substance used commonly to increase soil pH is_________.

A majority of roots are present in this soil horizon.

Fully decomposed organic matter is called______ and made up of ___________.

The largest particle of soil texture is______.

A tool to measure percentages of soil particle sizes is a _______.

A factor of erosion that results in too much air in pore spaces is_______.

One reason why soil pH is important for agriculture is_______________.

Different sizes of particles gives a soil_______.

A method that increases surface area along the contour of a hillside is called___

A factor of erosion that makes soil impermeable due to lack of pore space is________.

Soil serves many functions. Which is NOT a function of soil?

This conservation practice is the most efficient method of delivering water to plant roots_____

Plants most prefer this pH range.

Different sizes of soil particles create spaces called

This substance is used to decrease soil pH______.

A planting method often using legumes to fix nitrogen that keeps soil covered is called_____.

Which is NOT a determining factor of soil formation?

On the texture triangle, the 3 number spaces must total _______%.

Placing a material on top of soil to conserve water and keep it in place is called ____.

Organic Matter is ___% of an ideal soil and composed of _________ matter.

Alternating crop arrangement in beds based on nutrient availability is called___.

Nutrients eroded into streams can cause_______.

A soil profile is an individual layer of soil.

Roots generally are not present in this horizon.

The C horizon of soil is also known as___________.

The layer of soil that is most easily eroded is the _______ layer.

The B horizon is known as ______characterized by accumulation of nutrients known as_________.

Decomposers include all EXCEPT

Bedrock is found in this soil horizon_______.

A characteristic of piedmont soil is the high content of _______ . Color is result of ________.

The Mississippi River Delta is an example of a ____________.

Cambridge High is located in the ______ geographic region.