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State the process of Formation of Acid Soils
The soil acidity is mainly caused by hydrogen and aluminium ions, depending upon the degree of existing soil acidity. At very low pH (<5.0) aluminium is soluble and hydrolyses to Al(OH)2+, the H+ ions released are responsible for acidity. At a pH range of about 5.0 and 6.5, aluminium, in presence of OH- ions gets converted to Al(OH)+ 2ions which on further hydrolysis form aluminium hydroxide and H + ions, again adding to the soil acidity.
What is vision and how is it connected to the brain?
Preparation of Guidance Charts for First Aid Your Counsellor will form groups of four students. Using the materials from the sections of Unit 16 mentioned in each case below, each
What are the heat sources in the earth?
Pollution Now-a-days, you might have heard every one talking about pollution. What does pollution mean? Pollution is the addition to the environment (air, water, soil) of subst
What is the earth made of? The overall composition of the Earth, in terms of elemental composition is as follows: Iron 34.6% Oxygen 29.5% Magnesium 12.7% Silic
What is the name for the margin where two plates in the lithosphere slide past each other? Transform Fault Margins
Define the Sympathetic Nervous System The sympathetic component of the autonomic nervous system is concerned with in- creasing the level of arousal and energy expenditure - pri
Amphoteric : Amino acids having the characteristics of an acid and a base.
Explain the Factors Affecting Peripheral Resistance i) If more than 30% of the blood volume of a person is lost through bleeding (haemorrhage), the compensatory mechanism may f
why we use mercury in the measurement of conductance using wheatstone bridge principle
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