summary of a problem by anton chekhov summary

1. Problems involving rational numbers are simplified using 'BODMAS' rule. 2. A rational number can be represented in the decimal form. 3. When a rational number is represented as a decimal, it will be either a terminating decimal or a recurring decimal. 4. All rat..

Although India's food production has increased by 300 percent, percapita availability of food has reduced, in the last 50 years. Human food needs are met by cereals, millets, pulses, oilseeds, fishes, milk products, poultry birds, eggs and fishes. There is serious malnutrition problemh..

. Non-renewable resources include fossil fuels such as coal and petroleum and most of the minerals. A healthy environment is an absolute necessity for the well-being of all organisms, including man. However, man's thoughtless actions are creating environmental problems. Some of them a..

. groups with elimination of H 2 O, NH 3 etc. and formation of linkages such as ester, amides etc. Even electrophilic aromatic substitution of phenols with formaldehyde forms polymers having C-C linkages. Each condensation step provides a bi or poly functionalized product and the polymerization pro..

. This problem of tissue rejection can be overcome by the use of immuno suppressive drugs. 21) When the kidneys are so impaired that they are unable to excrete wastes and regulate pH and electrolyte balance in plasma, Haemodialysis is employed. 22) Advancement in Biomedical engineering ha..

">Ali went to a clerk and offered him five gold guineas for doing him a favour. In Allah's name, he told him to deliver Miriam's letter when and if he received it. When the clerk asked him where he had to deliver it, Ali told him that it should be delivered to his grave. So saying, he told the cler..

Periodic table is an arrangement of elements in the increasing order of atomic number such that elements with similar properties fall under same vertical column. A Group is a vertical column in the periodic table. A Period is a horizontal row of elements in the periodic table. Long form ..

Ratio is the numerical relationship between two quantities of the same kind. The first quantity is called the antecedent and the second quantity is called the consequent. By performing simple operations on ratios, we get compounded ratio, duplicate ratio, triplicate ratio, sub-duplicate ratio ..

Trigonometry is that branch of mathematics which deals with the measurements of sides and angles of triangles. The figure obtained by rotating a given ray about its end point is called an angle. An angle is called positive if the direction of rotation of ray from initial side to terminal ..

While the nervous system and endocrine system have their own features, they have a common method of communication. Both the systems release chemicals to communicate between cells. Together these two systems carry out a very complex process of maintaining a homeostatic (balanced) internal envi..