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Classification of Hazardous Chemicals : The classification of chemical hazards as recommended by the UN Committee of Experts on the Transport of Dangerous goods has been widely adopted for the conveyance of hazardous chemicals for all modes of transport. Hazard types are segregated into nine basic classes represented numerically from 1 to 9. Many of these classes are further separated into divisions and subdivisions
Define the Fixed Type of Macrophages The fixed types are located permanently in certain organs, which include: Lungs - alveolar macrophages. Liver - kupffer cells.
Proteins may be classified broadly into three groups: a) Simple proteins, b) Conjugated proteins, and c) Derived proteins.
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
Describe the factors which decide the broad area of Scientific activity.
Measuring atmospheric pressure with a rubber sucker The force needed to pull the sucker away from a smooth surface can be found by using a spring balance. The area on which the
What is shale? It is a fine-grained, earthy, sedimentary rock like clay, but produced in thin layers.
Biological evolution We can presume that biological evolution began with the formation of the first true cells. These must have been forms that did not require free oxygen
The hydrogenation of cyclohexene in the liquid phase has been investigated in a laboratory reactor in the temperature range from 25°C to 30°C. The catalyst (Pt) is suspended in the
Storage of Chemicals : You have read about the stores as important structures of all the labs in previously. Storage of chemicals whether in small amount or in bulk is another imp
How soap helps water in cleaning Prepare two greasy cloths by smearing kitchen fat or vaseline on cloths. Wash one sample in warm water without soap. Wash the other sample in w
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