Amorphous Forms of Carbon
Coal is formed in nature by the 'carbonisation' of wood. Conversion of wood to coal under the influence of high temperature, high pressure, and in the absence of air is termed carbonisatio..
Improved Yield
Here the aim is to increase crop production. High yielding crops should be developed for this purpos..
Density
Metals have high density and are very heavy. Iridium and osmium have the highest densities where as lithium has the lowest densit..
Limitation
The installation and maintenance of an OTEC power plant is very high and efficient commercial exploitation is difficul..
Bonding in Carbon - The Covalent Bond
Although there are more than hundred elements around us we do not find these elements in their native form in nature. This is because most of these elements are highly reactiv..
Division Angiospermae
This group constitutes the largest group of plants. Seeds are produced inside an ovary which later becomes the fruit. These are highly evolved group of plants. The plant body is distinctly differentiated into roots, stem and leav..
Fish Farming
This includes inland and marine fisheries, aquaculture and pisiculture. Fish is a source of high quality animal protein and a rich source of minerals like calcium, phosphorus and iron. India abounds in fish, both fresh water and mari..
Symptoms
Headache and high temperature for three four weeks. The temperature reaches its peak in the afternoon If care is not taken, relapse is commo..
Understanding the Chemical Properties of Acids and Bases
As acids and bases are highly corrosive and reactive substances it is important to understand their reaction and responses on substances commonly found around us. It helps us to understand the outcomes of using them in daily life. Let see the different acids and base..
Melting and Boiling Point
Metals have high melting and boiling point. Tungsten has the highest melting point where as silver has low boiling point. Sodium and potassium have low melting point..
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