Physical Characteristics of Soil

What is the ideal composition of soil?

• Mineral Matter 50%, Water 20%, Air 20%, Organic Matter 10%

• Mineral Matter 45%, Water 25%, Air 25%, Organic Matter 5%

• Mineral Matter 45%, Water 25%, Air 20%, Organic Matter 10%

• Mineral Matter 50%, Water 25 %, Air 20%, Organic Matter 5%

Name the soil component labelled B.

• Mineral Matter

• Organic Matter

• Water

• Air

A measure of the proportion of sand, silt and clay found in a soil is known as

• Soil Structure

• Soil texture

• Soil Triangle

• Topography

Good Drainage, Good Aeration, Large Pore Space and poor fertility are characteristics of which soil type?

• Clay

• Sandy

• Loam

• Silt

Poor Drainage, Poor Aeration, Prone to Water logging , Small Pore Space and Fertile

• Clay

• Loam

• Sandy

Which of the following is not a physical property of soil?

• Soil colour

• Soil texture

• Soil pH

• Soil temperature

Which of the following is the smallest soil particle?

• Sand

• Silt

• Gravel

• Clay

Name the item above.

• Soil Structure Triangle

• Soil Texture Triangle

• Soil Properties Triangle

The rate at which water passes through soil is known at

• Gravitational

• Capillary

• Infiltration

• Evaporation

Percentage of soil water never changes?

• True

• False