Soil-environmental components, Biology

Assignment Help:

Soil-Environmental Components

The word soil is derived from Latin word 'solum' meaning earthy material in which plants grow. The soil is the consolidated outer layer of the earth's crust ranging in thickness from a mere film to three metres or more. It provides mechanical anchorage to plants, besides being a reservoir of water and plant nutrients. The soil also supports a rich and highly diversified micro-flora and fauna.

Typically, soil is a complex mixture of inorganic and organic materials. The inorganic materials, that is, the mineral constituents of soil are derived from parent material (the soil forming rocks) by fragmentation and weathering. The pore spaces formed between the mineral particles of soil are filled with water and gases. The organic components of soil comprise organic wastes, dead remains of plants and animals, and their decomposition products. Besides, a large variety of algae, bacteria, fungi and many small and large animals are invariably present in a fertile soil.


Related Discussions:- Soil-environmental components

Water has key participation in organic reactions, Q. Water has key particip...

Q. Water has key participation in organic reactions. What are examples of two types of organic reactions in which water is respectively incorporated or liberated in the products of

Somatic embryogenesis, Somatic Embryogenesis The process of embryo de...

Somatic Embryogenesis The process of embryo development is called embryogenesis. It is not the monopoly of the egg to form an embryo. Any cell of the female gametophyte (Embr

Insulin and its functions, People with Type 1 DM produce no insulin. People...

People with Type 1 DM produce no insulin. People with Type 2 DM do not always produce enough insulin. Insulin is used medically to treat some forms of diabetes mellitus. Patients w

Why the effect of genetic drift likely to be the same, Is the effect of gen...

Is the effect of genetic drift likely to be the same in pop 1 and pop 2? How are genetic drift and pop size related? When there is strong selection against the homozygous recessive

Define the standard deviation (2 score) classification, Define the Standard...

Define the Standard Deviation (2 score) classification? Statistics teaches us that when normal values of any variable are distributed as per their frequency of occurrence, they

Human respiratory system - thoracic cavity, THORACI C CAVITY - Thor...

THORACI C CAVITY - Thoracic cavity is air tight. On dorsal side vertebral column present. On ventral side sternum present. On lateral side 12 pairs ribs present. On p

Glanders, Glanders The glanders is caused by Burkholderia mallei (previous...

Glanders The glanders is caused by Burkholderia mallei (previously known as Malleomyces mallei) and it is a serious contagious disease of equines. Infected equidae are the reservo

Locomotion in annelida, Locomotion in Annelida Before we discuss the ...

Locomotion in Annelida Before we discuss the details of locomotion in annelids, we have to recapitulate the major subdivisions of the phylum Annelida. Phylum Annelida contain

Explain about the amino acids and proteins, Explain about the Amino Acids a...

Explain about the Amino Acids and Proteins? We shall now study the properties of amino acids which we know are the building blocks of proteins.  In this practical, we shall car

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd