Question

What is the natural composition of soil

Answer 1



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Biology

 

 

 

 The Soil

 

Concept Version 6

Created by Boundless

Soil Composition

Soil is a mix of varying amounts of inorganic matter, organic matter, water, and air.

LEARNING OBJECTIVE

Explain soil composition

KEY POINTS

The chemical composition of the soil, the topography, and the presence of living organisms determines the quality of soil.In general, soil contains 40-45% inorganicmatter, 5% organic matter, 25% water, and 25% air.In order to sustain plant life, the proper mix of air, water, minerals, and organic material is required.Humus, the organic material in soil, is composed of microorganisms (dead and alive) and decaying plants.The inorganic material of soil is composed of rock, which is broken down into small particles of sand (0.1 to 2 mm), silt (0.002 to 0.1 mm) , and clay (less than 0.002 mm).Loam is a soil that is a mix sand, silt, and humus.

TERMS

loam

soil with no dominant particle size that contains a mixture of sand, silt, and humus

humus

a large group of natural organic compounds found in the soil composed of decaying plants and dead and living microorganisms

Answer 2

hii frnd

here is ur answer

It is the seat of soil fertility. The sand and silt fraction is influence mainly the physical properties of the soil .

thnku


hope it's help u !!