MgO has a high melting point because of the difference in lattice energy. They all have the same FCC lattice structure, but the lattice energy of MgO is roughly 4 times that NaCl and KCl because it is proportional to Z+.Z- Since lattice energy is disproportional to this distance, that could be why the lattice energy of MgO is larger than that of BaO.

In drilling world’s deepest hole it was found that the temperature T in degree celsius, x km below the earth’s surface was given by T= 30+ 25(x–3), 3≤ x ≤ 15. At what depth will the temperature be between155℃ and 205°C?

The geographical phenomenal both physical and human are not static, they are highly dynamic because of the inter-active processes between ever hanging earth and ever-active and untiring human beings. EXPLANATION: Since geography is related to studying the Earth, and the Earth is continually changing.

An indifference curve is a graphical representation of a combined products that gives similar kind of satisfaction to a consumer thereby making them indifferent.Every point on the indifference curve shows that an individual or a consumer is indifferent between the two products as it gives him the same kind of utility.

The indifference curve analysis work on a simple graph having two-dimensional. Each individual axis indicates a single type of economic goods. If the graph is on the curve or line, then it means that the consumer has no preference for any goods, because all the good has the same level of satisfaction or utility to the consumer. For instance, a child might be indifferent while having a toy, two comic book, four toy trucks and a single comic book.

Thank you so so much

Mother’s Day Summary in English The chapter portrays the practical experience of a mother, Mrs Pearson. On a daily basis, her kids disrespect and disregard her. In her own home, she was treated as a slave. Thus, she fell a lot of ignorance and embarrassment every day not only from her Daughter Doris and son Cyril but also from her husband George Pearson who has completely turned a blind eye from his wife. Mrs Pearson life turns when she meets Mrs Fitzgerald, a fortune teller, and discusses her family members and their terrible behaviour. She tells Mrs Fitzgerald everything about her family behaviour. Moreover, Mrs Fitzgerald (strong and sinister personality) recommends her to exchange personalities. So as to teach her family a good lesson. At first, Mrs Pearson didn’t agree but after some encouragement, she agrees to switch bodies. After that, Mrs Fitzgerald casts a spell and swaps her personality with Mrs Pearson. In a matter of seconds, their personality switch and Mrs Pearson who was calm and composed is now smoking and drinking. And Mrs Fitzgerald is now sitting idle. The scene changes, and now Mrs Pearson is in her home and Doris enters home. She hands her a dress and asks her to iron as she has to go on a date with her boyfriend Charlie Spence. Also, she even objects her mother’s smoking. And when she asks her, Mrs Pearson replies very harshly and advise her to do her work herself. Further, she makes fun of her boyfriend. Afterwards, Doris feels miserable and shamed and starts crying when her mother insults and rebuke her. After this, her son Cyril enters, asks his mother hurriedly if his tea is ready. On which Mrs Pearson refuses and advises him to prepare it himself. After seeing her mother reaction and her sister crying he raises his voice. Also, calls Mrs Fitzgerald an old hag on which Mrs Pearson instructs him to mind his language. When the kids talk about being worn-out after work. She makes it very clear to both of them that they all will work equally from that day onwards. And she will not work at weekends and enjoy with her friends. At that point, Mr Pearson enters the house and expresses his surprise on seeing her wife drinking and smoking. He objects Mrs Pearson makes him realise that if he can drink then she can too. Further, he tells him that instead of spending his time with her wife he is spending time with people who are making fun of him behind his back. Mrs Pearson on seeing her family insult asks Mrs Fitzgerald to stop all this. However, she doesn’t let her speak until she teaches all of them a good lesson of respecting and honouring their mother. Soon after they switch personality again. And after that, the son, daughter, and husband learn their lesson and start supporting their mother and wife. Conclusion of Mother’s Day Summary Through the Mother’s Day summary, the writer wants to say that we all should respect, care, and help our mother for all the hardship she does for us.

Harman purchased 1000sq.yards of land to build a factory and paid 15 lacs for it to at the end of financial year the value of land came down to 13 lacs and he booked a loss of Rs 2lacs

almond purchased thousand square yards of land to build a factory and paid 15 lacs for it at the end of the financial year the value of blood come down to rate 30 lacs and he looked booked a loss of red 2 lakh

A stock exchange is an important factor in the capital market. It is a secure place where trading is done in a systematic way. Here, the securities are bought and sold as per well-structured rules and regulations. Securities mentioned here includes debenture and share issued by a public company that is correctly listed at the stock exchange, debenture and bonds issued by the government bodies, municipal and public bodies.

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Maru-Ragini (Sahibdin):- The love story of Dhola - Maru is very popular in Rajasthan and is narrated both

in Murals and miniature paintings. The composition of the painting is divided into two parts. Dhola and Maru are shown seated under a yellow canopy with a red curtain in the upper part of the composition. Dhola is dressed in typical aristocratic attire complete with weapons like sword and shield, facing his lover Maru in Rajasthani costume. The lower part of the composition shows Maru caressing her pet camel. Both the figures are prominent against a green background dotted with flower motifs. Stylished motifs of trees are bringing a unity in the composition.

किसान अपने व्यवसाय से पलायन कर रहे हैं। परिचर्चा में इसके कारणों की पड़ताल करनी होगी। निम्नलिखित कारणों पर चर्चा कर विचार करें-

(1) खेती अब लाभप्रद व्यवसाय नहीं रह गई है। लागत अधिक और आय कम होती है।

(2) खेती में बहुत अधिक परिश्रम करना पड़ता है। अब पढ़ा-लिखा वर्ग परिश्रम से जी चुराने लगा है।

(3) सरकार की ओर से सिंचाई, बीज, खाद आदि सुविधाओं का अभाव है।

(4) फसल में उगाए गए अन्न की बिक्री की समुचित व्यवस्था नहीं है।

(5) किसान की फसल का बीमा होना चाहिए।

Cellular organisation :- All living organism are made up of cell .

Metabolism :- The sun total of chemical reaction talking place inside living body . Known as metabolism .

Consciousness is the state of being aware of surrounding. It is defined by the ability of the organism to respond to the stimulus which is known as irritability. If an organism is able to respond to stimuli, that means it is aware. As irritability is defining the property of life, so consciousness can be considered as defining property of a living organism.

Metabolism is the ability to split the complex substance (catabolism) and convert them into simpler ones which further forms energy (anabolism). The energy helps to carry several metabolic and physiological function which makes metabolism an important and defining property of life.

Yee, kaisa question hua ans to yee aap mai hi milegaa, yaha dekhlooo

@Suresh Chettri , you can refer to learncbse.com

Ranga gave two examples. An officer about thirty, married a girl about twenty- five. Ranga hoped they would be able to talk lovingly to each other. The second example is that of Dushyanta falling in love with Shakuntala, who was quite mature.

Earthquakes often cause dramatic geomorphological changes, including ground movements—either vertical or horizontal—along geologic fault traces; rising, dropping, and tilting of the ground surface; changes in the flow of groundwater; liquefaction of sandy ground; landslides; and mudflows. The investigation of topographic changes is aided by geodetic measurements, which are made systematically in a number of countries seriously affected by earthquakes.

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Consciousness is the state of being aware of surrounding. It is defined by the ability of the organism to respond to the stimulus which is known as irritability. If an organism is able to respond to stimuli, that means it is aware. As irritability is defining the property of life, so consciousness can be considered as defining property of a living organism.

Metabolism is the ability to split the complex substance (catabolism) and convert them into simpler ones which further forms energy (anabolism). The energy helps to carry several metabolic and physiological function which makes metabolism an important and defining property of life.

Johann Wolfgang Döbereiner haves dobber's traids

Society is a continuous process. It functions in a natural way. Society is not imposed upon people rather it is accepted by the members. The most important part in the functioning of society is negotiations. Due to social interaction society gets constituted and reconstituted.

Renaissance means ‘rebirth’. It occurred in Italy in the fifteenth century. A new movement of knowledge started in Europe after a long dark age of ignorance. The people of Europe again began to take interest in European ancient culture and civilisation.

The term ‘Renaissance’ literally means rebirth or revival. It was a complex transitional movement which took place in Europe between 14^th to 17^th centuries. It stressed on rational thinking and humanism. During Renaissance, many developments took place in literature, art, architecture, science and technology. It marked the beginning of the modern era in Europe.

1. Christians had believed that the earth was a sinful place and the heavy burden of sin made it immobile. The earth stood at the centre of the universe around which moved the celestial planets.

2. Copernicus asserted that the planets, including the earth, rotate around the sun. A devout Christian, Copernicus was afraid of the possible reaction to his theory by traditionalist clergymen. For this reason, he did not want his manuscript, De revolutionibus (the Rotation) to be printed. On his deathbed, he gave it to his follower, Joachim Rheticus.

3. It took time for people to accept this idea. It was much later - more than half a century later, in fact - that the difference between ‘heaven’ and earth was bridged through the writings of astronomers like Johannes Kepler (1571-1630) and Galileo Galilei (1564-1642).

4. The theory of the earth as part of a sun-centred system was made popular by Kepler's Cosmographical Mystery, which demonstrated that the planets move around the sun not in circles but in ellipses. Galileo confirmed the notion of the dynamic world in his work The Motion. This revolution in science reached its climax with Isaac Newton's theory of gravitation.

The Catholic response to the Protestant Reformation is known as the Counter-Reformation which resulted in a reassertion of traditional doctrines and the emergence of new religious orders aimed at both moral reform and new missionary activity.

Women in France did not avail respectable status in society. They were considered much inferior to men before the Revolution. Most of them of the third estate had to work for a living. 

They worked as seamstresses or laundresses, sold flowers, fruits and vegetables at the market or were employed as domestic servants in the houses of wealthy people. 

Most women did not have access to education or job training. Only daughters of nobles or weathier members of the third estate could get education. 

Working women had to take care of their families. They had to cook, fetch water, queue up for bread and look after the children. Their wages were always lower than those of men.

Agriculture in the Middle Ages describes the farming practices, crops, technology, and agricultural society and economy of Europe from the fall of the Western Roman Empire in 476 to approximately 1500. The Middle Ages are sometimes called the Medieval Age or Period. The Middle Ages are also divided into the Early, High, and Late Middle Ages. The early modern period followed the Middle Ages.

Farming in the Middle Ages

Epidemics and climatic cooling caused a large decrease in the European population in the 6th century. Compared to the Roman period, agriculture in the Middle Ages in Western Europe became more focused on self-sufficiency. The Feudal period began about 1000. The agricultural population under feudalism in Northern Europe was typically organized into manors consisting of several hundred or more acres of land presided over by a Lord of the manor, with a Roman Catholic church and priest. Most of the people living on the manor were peasant farmers or serfs who grew crops for themselves, and either labored for the lord and church or paid rent for their land. Barley and wheat were the most important crops in most European regions; oats and rye were also grown, along with a variety of vegetables and fruits. Oxen and horses were used as draft animals. Sheep were raised for wool and pigs were raised for meat.

Crop failures due to bad weather were frequent throughout the Middle Ages and famine was often the result. Despite the hardships, there is anthropometric evidence that medieval European men were taller (and therefore presumably better fed) than the men of the preceding Roman Empire and the subsequent early modern era.

The medieval system of agriculture began to break down in the 14th century with the development of more intensive agricultural methods in the Low Countries and after the population losses of the Black Death in 1347–1351 made more land available to a diminished number of farmers. Medieval farming practices, however, continued with little change in the Slavic regions and some other areas until the mid-19th century.

 

1. Arab's Contribution in the Field of Science :

(i) The Arabs produced great physicians like Al-Razi and Ibn-Sina who respectively discovered the true nature of smallpox and tuberculosis. They organised hospitals, for the treatment of the infectious diseases.

ii). In Mathematics the Arabs spread the knowledge of numbers and trigonometry in the other regions of the world Omar-Khayyam a great Mathematicians of Arab devised a calendar which is more accurate than the present Christian Calendar.

iii). The Arab astronomers believed that the earth revolves round the sun.

Humanism was a restoration of true civilization after the Dark Age that had set in after the fall of the Roman Empire.

1. Humanism stressed on the individual skills. A person with many skills and interests have been referred to as the Renaissance man. The emerging belief in individual potential helped to identify a town by its citizens.

2. The Humanist thought had a very different idea of history. According to this thought only humanism could revive the long past true civilisation. This revival would enable to end the Dark Age that Europe was then passing through.

3. The establishment of the New Age would mark an end to the period of the supremacy of the Church. The basis of humanism is naturalism, which is antithetical to the beliefs of Christianity.

4. Humanism revived the classical Greek literature. The works of Aristotle and Plato were translated. Along with these subjects modern faculties such as chemistry, mathematics, natural science and astronomy also became a part of the college curriculum.

5. Not only formal education but also art, architecture and books were effective mediums of transmitting humanist ideas. Drawing realistic paintings and sculpting perfectly proportioned figures of men and women were expressions of humanism. Painters and sculptors started to rely on anatomy, geometry and physics to recreate reality.