Environmental Science; Agriculture

What are the components of soil?

• sand, silt, clay

• plant remains and other organisms

• nutrients

• the soil contains all of these choices

Soil texture is based on

• fertility

• particle size

• acidity or alkalinity

• the percent of water in the soil

The type of soil with the smallest average particle size is

• silt

• sand

• loam

• clay

True or False:

Earthworms aerate the soil, add organic matter and speed decomposition

• True

• False

True or False:

Soil formation is a rapid process that only takes a few years to form.

• True

• False

True or False:

Deposition of formerly living things allows nutrients to be incorporated into the soil

• True

• False

In the soil, pore size is

• the amount of nutrients in the soil

• how big the soil particles are

• the space between the soil particles

• the amount of time it takes for water to flow through the soil

Permeability in soils is

• the rate at which water flows through soil

• the amount of dissolved salts in the soil

• the size of soil particles

• the compaction of the soil

Physical weathering of rocks is

• rocks changing into different rocks

• big rocks breaking down into smaller pieces

• a very fast process in primary succession

• not a real thing

The chemical weathering of rocks is a process that

• that does NOT require water

• breaks the rocks down but they don't change chemically

• that only occurs near the shoreline

• changes the rock chemically while it breaks down into smaller pieces