Short essay on the Composition of Foreign Trade. Decline in imports of food grains and consumer goods due to adoption of HYV technology in Indian agriculture and growth of consumer durables producing industrial units in the country.
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The term ‘lipid’ includes fats, fat like substances and oils. These substances as a class are insoluble in water but are soluble in organic solvents like ether, alcohol and benzene.
Blood is commonly described as a connective tissue, which plays a very important part in the maintenance of life. It is a thick, opaque fluid made up of plasma, in which floats formed elements the blood cells or corpuscles.
Soap is the most widely used cleanser of fabrics. Detergent is anything that will clean, including soap and soap less products. Both remove dirt mainly by a process of 'wetting out and emulsification.
Fats or lipids are the most concentrated form of all energy giving foods. They constitute an important part of our daily diet and supply about 10-30% of our energy needs.
Carbohydrates are the most widely and economical sources of energy. They are the most abundant organic compounds composed of structural parts of the plants in the form of cellulose as well as stores of starches and sugars.
Blood is known as fluid connective tissue. Its fluid matrix is the plasma in which blood cells or corpuscles float freely and are carried on alongwith bloodstream. Its color is red and it is slightly alkaline having pH 7.3 to 7.5. In an adult man about 6-7 litres of blood is present.
Blood is a liquid tissue that circulates in a closed system of blood vessels. Total volume of blood in human body is 5.4 liters. In man, it may be 85 ml/kg body weight. The specific gravity of blood varies between 1.05-1.06.
Air is one of the most important natural resources. Air is necessary for all living organisms for their respiratory process. The organisms which live on the land (called terrestrial organisms) get oxygen needed for respiration from the air. A healthy man breaths 22000 times a day and takes in about 16 kg of air.
Petroleum is also called rock oil (Petra=rock, oleum=oil). It is a dark colored oily liquid, which occurs at various depths below the surface of the earth. The oil wells are generally called mineral oil or crude oil.