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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.
H e a t stroke It is also known as sun stroke or hyperthermia and results in excessive rise of body temperature and absence of sweating. E t i o l og
In what ways is water lost from the body? Water is lost from the body by a) Evaporation (lungs and skin), b) Urination and defaecation (faeces always have water).
Q. Illustrate Physiological Evidence ? Physiological and biochemical evidence is providing data of increasing importance to plant systematic. Recently, it has become apparent t
What is right patellar tendon Which of the following occur in response to an increase in the length of the right knee extensors in response to a quick tap applied to the right
Describe the advantages of sulphur Sulphur also increases the oil content of crops such as flax and soyabeans. Disulphide linkages ( -S-S-) have recently been associated with
Explain Standard titration - Estimation of Vitamin C in Lemon Juice? Pipette 5 ml of standard ascorbic acid solution into a 100 ml conical flask. Fill the burette with the dye s
SYNAPSE - The point where 2 neurons combine is synapse. It is of 2 types - (i) Axosomic (between axon & cyton) (ii) Axodendric (between axon & dendron) Axon is term
Classic Repair (Linear repair) : The operation is done under cardio pulmonary bypass, through median sternotomy. If additional CABG is required, conduit harvesting is done.
Define the density of egg The density of egg products is not affected by dehydration. When a dried egg product is reconstituted to its natural solids, it has about the same d
Protoplasm Also known as bioplast . It is gelly like & semi liquid in appearance. It is translucent in nature. It is colourless, oderless, viscous, elastic & granu
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