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Dissolution and dilution : Water soluble1 miscible chemical wastes which are harmless in high dilution may be run into the drainage with plenty of water. It may be noted that alkali wastes also come under this category of treatment.
Examples: Acetone, methanol, ethanol, dioxan, acetic acid, ethyl methyl ketone, ammonia (solution), hydrogen peroxide, oxalic acid, dimethyl sulphoxide, hydroquinone , p-benzoquinone, ammonium sulphide, potassium hydroxide and sodium hydroxide.
Experiment of Making a model of a simple flower By Using of modelling clay, coloured paper and toothpicks make 3D-dimensional models representing the parts of a typical flower.
A stone seems to weigh less in water Weigh a large stone on a pair of kitchen scales. Put a loop of heavy string around the stone and weigh it again suspended in a pail of wate
The Arctic Circle lies at which latitudes: At (66 ½oSouth)
Explain the Apnoea Apnoea means cessation of breathing. Temporary apnoea may be seen in low carbon dioxide tension in blood. During swallowing, there is a temporary apnoea.
? Select one of the sociological perspectives, the functionalist, conflict, or symbolic interactionist, and analyze the problems facing K-12 education in the United States.
Technical Developments in Feudal Society: Other innovations used and improved by the Europeans were the lenses and the spectacles. This gave an impetus to the further study
what is meant by this topic?
Agriculture on a large scale: Crops had to be planted and harvested in the right season. Floods were a recurrent phenomenon in the river valleys, for which it was essent
I can''t identify which tree this is
Water-mill in Golden era: The water-mills were also invented in the classical period. But they came to be widely used only in the Middle Ages. The wind-mills and water-mills
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