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Air Pollution
Air pollution is one of the major problems created by modern man. It is estimated that about 100 million tons of waste are poured into our atmosphere each year. Wastes in the form of smoke from industry, power plants, automobiles and homes; and also due to burning of fossil fuels, spread pollution into our atmosphere. Aircrafts also release large amounts of burnt or unbumt fuel into the air. You may have seen a long trail of smoke left behind by a climbing jetliner.
The burning of coal, wood, diesel oil, kerosene, petrol etc. produces the following five categories of pollutants:
i) Carbon monoxide
ii) Hydrocarbons
iii) Particulates
Oil extraction : Extraction of oil from the prepared oilseeds can be done by one of the following methods: (i) traditional method: ghani, (ii) Improved methods:
Simple hydraulic press The principle of the hydraulic press is illustrated by the following model. Half fill a cylindrical jar with water. Pour melted paraffin wax on the su
Define the Utilization of Amino Acid Amino acids are utilized in the liver to form plasma proteins like serum albumin, serum globulin, prothrombin and fibrinogen. Amino acids,
A physician notes that in a patient there is impaired vibration and position sense, astereognosis, and ataxia. The physician noted loss of all sensations in some areas of the patie
Explain Saliva - External Defence Mechanism Saliva contains microorganisms which are not the normal inhabitants. Dead microbes are passively flushed by the saliva and are swall
What is the professional name for the person who studies fossils? Paleontologist
what is global warming?
Emergence of Urban Societies: The writings of this period also give us a picture of the social conditions. The social structure was undergoing radical changes at this time,
Explain the Spinal Nerves As mentioned earlier, there are 31 pairs of spinal nerves that leave the vertebral canal by passing through the intervertebral foramina formed by adja
Properties Some of the important physico-chemical characteristics of riboflavin are as follows: a) Riboflavin forms needle shaped orange crystals. b) It is sparingl
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