In this triple bond is present between carbon atoms (C  C  bond).The hybridisation is sp and the general formula involved is C_nH_2n -2.

•  The lowest member of alkynes is: simplest compound that is CH  CH (ethyne).
• The common name of it is acetylene.
• It has high Bond dissociation energy, as there is triple bond present therefore the energy is high of the order 823 KJ/mol.
• Due to this reason the acetylene is mixed with O₂ and the flame is used for welding purpose.

The structure of the alcohol functional group is R−OH. Aldehyde is the functional group in which one alkyl group is bonded to the carbonyl atom. The structure of the aldehyde functional group is –CHO.

The definition of an action is something that is done or performed. Performing a skit and baking a cake are each an example of an action. "Action is the mode [that] fiction writers use to show what is happening at any given moment in the story," states Evan Marshall, who identifies five fiction-writing modes: action, summary, dialogue, feelings/thoughts, and background. ... Writing a story means weaving all of the elements of fiction together.

Midbrain is located between the thalamus region of the forebrain and pons region of the hindbrain. It helps in the relay of information from the hindbrain to the midbrain. The dorsal surface of midbrain consists of superior and inferior corpora bigemina and four round lobes called corpora quadrigemina. A canal known as cerebral aqueduct passes through the midbrain. The midbrain is concerned with the sense of sight and hearing.

The meaning of the heat budget of earth:
The heat budget refers to the heat received by the Earth and the atmosphere and the balance of heat loss by the earth. The greater capacity of heating of the Earth, the greater is the amount of heat energy returned back into space by radiation.

The budget of heat:
The Earth gets the solar radiation from the Sun in the form of short waves. After colliding with the Earth, reflection of the solar radiation takes place. The returning radiation from the Earth is called Terrestrial Radiation, which is in the form of long waves. Thus, the amount of solar radiation received by the earth and the terrestrial radiation released by the earth is almost the same.

The right against exploitation prohibits all forms of forced labour, child labour and trafficking of human beings. Children under age of 14 are not allowed to work.

The boat was almost turning over. The masts or poles lay flat. The narrator grabbed the rails. He was tossed around the deck like a rag doll. His chest bones cracked, his teeth were broken and his mouth was filled with blood. But he hung on to the wheel.

There was water all over. It had flown below but there was no way to examine the exact position. Suddenly, the lid over the opening on the deck was thrown open. Mary screamed that the lower part of the ship was full of water. She was told to take the wheel. The narrator went down to check on the other members. The two crewmen Larry and Herb were madly trying to pump out the water. The sideboard of the ship had bulged inwards. Clothes, charts and crockery were floating like toys. He moved towards the children’s cabin and found them safe on the upper berth. But Sue had a bump on her head.

The narrator found a hammer, screws and canvas. He made some repairs to stop the water from entering. He spread the canvas across the open holes. Some water now flowed towards the sides instead of below.

More problems arose when the handpumps were blocked up with debris. The electric pump went out of order. The water level rose dangerously. Back on deck, the narrator found the two spare handpumps also thrown overboard. Then, he thought of another electric pump in the chat room. He connected it to an out-pipe and it worked.

The night was bitterly cold. They sent out distress radio signals asking for help. The little girl’s head was swollen and she got black eyes due to her injury. She also had a deep cut on her arm. But she didn’t complain because she didn’t want to cause worry to her father.

Mr Crocker-Harries is not a sadist like some other masters. He does not get pleasure out of giving pain. If he were a sadist, he would not be so frightening. It would show he has some feelings, but he hasn’t any. He’s all dry like a nut. He seems to hate people to like him, but other masters like being liked.

The wave that hit Wavewalker had caused extensive damage. Nearly all the boat’s main frames had been smashed down to the keel. A whole section of the starboard hull was being held up by a few cupboard partitions. Wavewalker could not hold together long enough for them to reach Australia. So he searched for an island to repair the boat.

King Tut's mummy went on public display for the first time after the tomb was discovered by British archaeologist Howard Carter. The contents of the tomb were removed and catalogued by Carter in five years. In order to remove the king's gold and jewel encrusted amulets and his golden death mask, he had to cut the body into 18 pieces.

                  WORKSHOP ON PERSONALITY DEVELOPMENT

Delhi, March 3, 2020

Four students from our school were selected to attend a one-day personality development workshop organized by International Institute of Personality Development & Image management. The workshop was held on 25th February, 2020 at 9.00 a.m. in the Conference hall of the institution. Mr. Surya Sinha, famous personality development guru, honoured the occasion with his graceful presence. He delivered the inaugural speech also. Many eminent personality development 'gurus' delivered their lectures on the ways and the necessity to develop personality. All the students took very keen interest and they were stuck to learn the ways to enhance their personality through the golden rules enumerated in the workshop. The workshop was also graced by eminent personalities like Yukta Mukhey and Anupam Kher, who enlightened the students about the importance of interpersonal skills. The workshop proved to be very beneficial for the students. 

the third century brought the first major signs of internal strain. From the 230s, the empire found itself fighting on several fronts simultaneously.

(ii) In Iran a new and more aggressive dynasty emerged in 225 (they called themselves the ‘Sasanians’) and within just 15 years were expanding rapidly in the direction of the Euphrates. In a famous rock inscription cut in three languages, Shapur I, the Iranian ruler, claimed he had annihilated a Roman army of 60,000 and even captured the eastern capital of Antioch.

(iii) Meanwhile, a whole series of Germanic tribes or rather tribal confederacies (most notably, the Alamanni, the Franks and the Goths) began to move against the Rhine and Danube frontiers, and the whole period from 233 to 280 saw repeated invasions of a whole line of provinces that stretched from the Black Sea to the Alps and southern Germany.

(iv) The Romans were forced to abandon much of the territory beyond the Danube, while the emperors of this period were constantly in the field against what the Romans called ‘barbarians’. The rapid succession of emperors in the third century (25 emperors in 47 years!) Is an obvious symptom of the strains faced by the empire in this period.

Optimism is a determination to overcome difficulties. It raises one‟s spirits and helps one overcome stress and difficulty with ease. The story displays courage and optimism shown by everyone at the time of difficult situation. Survival happens only because of the optimistic struggle that the family carries on with the inclination to look at the bright side in the situation.
The level of perseverance in the author rises when Jonathan says, “We‟re not afraid of dying if we can all be together. Besides, the caricatures of him and Mary, drawn by Sue, helps his determination and optimism to grow many folds. The positive outlook of the children infuses positivity in the narrator. He rigorously calculates their position and finally asks Larry to steer a course of 185 degrees. Though he lost all hopes by then, he does not show it and optimistically told Larry that they would spot the island by about 5 p.m. Fortunately, their struggle and optimism pays off and they manage to find Ile Amsterdam by the evening.

Optimism is a determination to overcome difficulties. It raises one’s spirits and helps one overcome stress and difficulty with ease. The story displays courage and optimism throughout. Survival happens only because of the optimistic struggle that the family carries on with.

The level of perseverance in the author rises when Jonathan says, “we’re not afraid of dying if we can all be together. Besides, the caricatures of him and Mary, drawn by Sue, helps his determination and optimism to grow many folds. The positive outlook of the children infuses positivity in the narrator. He rigorously calculates their position and finally asks Larry to steer a course of 185 degrees. Though he had lost all hope by then, he did not show it and optimistically told Larry that they would spot the island by about 5 P.M. Fortunately, their struggle and optimism pays off and they manage to find Ile Amsterdam by evening.

Narrator gave his best to save his family. He pumped out the water with the help of wheel, Herb and Larry. Every wave was pushing the water into the boat from the holes so the narrator covered the holes with canvas. The problem increased when hand pumps get blocked due to floating debris and also electric pump underwent short circuit. Then narrator used two spare hand pumps and one electric pump and connected it with pipe to make the system work.

He spent whole night in pumping out the water and till morning the situation was under contro

Ignore the answer

Optimism is a determination to overcome difficulties. It raises one’s spirits and helps one overcome stress and difficulty with ease. The story displays courage and optimism throughout. Survival happens only because of the optimistic struggle that the family carries on with.

The level of perseverance in the author rises when Jonathan says, “we’re not afraid of dying if we can all be together. Besides, the caricatures of him and Mary, drawn by Sue, helps his determination and optimism to grow many folds. The positive outlook of the children infuses positivity in the narrator. He rigorously calculates their position and finally asks Larry to steer a course of 185 degrees. Though he had lost all hope by then, he did not show it and optimistically told Larry that they would spot the island by about 5 P.M. Fortunately, their struggle and optimism pays off and they manage to find Ile Amsterdam by evening.

Mayday calls are distress signals sent through the radio by ships facing trouble in the sea. They are made to get help from other ships passing nearby. The boat Wavewalker was not getting replies to its Mayday calls because the boat had reached a remote part of the sea where other ships did not go.f

The Egyptian Mummy Project, which began an inventory in late 2003, was engaged in the task of recording mummies so it had recorded almost 600 so far and was still counting. The next phase of the project was scanning the mummies with a portable CT machine donated by the National Geographic Society and Siemens, its manufacturer. King Tut was one of the first mummies to be scanned, in death, as in life, moving regally ahead of his countrymen.b

Looking at the lax body and boneless limbs of the child, Dr. Andrew Manson felt a pressing sense of defeat and hopelessness. He then remembered a case that he had seen in Smaritan. He immediately ordered the nurse to get two basins. He filled one with cold water and the other with water as hot as the hand could bear. Then he put the child in a blanket and alternatively dipped it in both the basins, but all in vain. He then tried to rub the body of the child with a rough towel. But this did not work either. Finally, he pressed the child's pigmy chest with his hands and mucus came out of one of his nostrils. Then came the child's cry and his pale sking turned pink. Andrew almost felt faint and dizzy due to over exhaustion.

(i) If Kc > 10³, products predominates over reactants i.e; if Kc is very large, the reaction proceeds nearly to completion. 
(ii) If Kc < 10^-3, reactants predominates over products i.e; if Kc is very small, the reaction proceeds rarely. 
(iii) If Kc is in the range of 10^-3 to 10³, appreciable concentration of both reactants and products are present. 

(i) If Kc > 10³, products predominates over reactants i.e; if Kc is very large, the reaction proceeds nearly to completion. 

(ii) If Kc < 10^-3, reactants predominates over products i.e; if Kc is very small, the reaction proceeds rarely. 

(iii) If Kc is in the range of 10^-3 to 10³, appreciable concentration of both reactants and products are present.

Alkanes

Alkanes are saturated, open chain hydrocarbons containing carbon-carbon single bonds. e.g., methane (CH₄), ethane (C₄H₆) propane (C₃H₈), etc.

These hydrocarbons are inert under normal conditions [i.e.,do not react with acids. bases and other reagents). Hence, they were earlier known 88 paraffins (Latin : parum-little; affins-affinity)

Alkanes exhibit chain isomensm, position isomerism and conformational isomerism.

400m Running Track

400m Running Tracks are specialized all-weather rubberized running surfaces used for an assortment of Track and Field competitions. With lanes designed to be 400m in length from start to finish, 400m Running Tracks are the most commonly used track size that can easily accommodate for competitive sprint lengths of 100m, 200m, and 400m. 400m Running Tracks have an inner radius of 119’9” | 36.5 m, an overall length of 580’5” | 176.91 m, width of 303’6” | 92.5 m, and area of 157,092 ft2 | 14,594 m2. All running tracks have lane widths of 4’ | 1.22 m.

Viharas were for the purpose of living, Chaityas were assemblies for the purpose of discussions. Further, Chaityas were with Stupas, Viharas did not have stupas.

Both early Chaityas and Viharas were made by woods and later stone-cut Chaityas and Viharas were made. Chaitya was a rectangular prayer hall with a stupa placed in the centre, the purpose was prayer. The Chaitya was divided into three parts, and had an apsidal ending, that is, a semicircular rear end, The central part of the hall (also called the nave) was separated from the two aisles by two rows of pillars, The chaityas also had polished interior walls, semicircular roofs and horse-shoe shaped windows called the Chaitya windows. Viharas were the residences of the monks.

Tut was a boy king of Egypt. He belonged to a very powerful dynasty which ruled for centuries over Egypt. Young Tutankhaten changed his name to Tutankhamun but he was popularly known as Tut. He ruled over his kingdom for about nine years. He died unexpectedly giving rise to many doubts and speculations. He was the last heir of his powerful family.

Mrs Dorling was a greedy woman who did not return the belongings to the narrator. She herself had offered to take Mrs S's things to her home to take care of them as long as they would be away. Mrs S had  entrusted the task of taking care of her things before leaving to save their life from Nazi soldiers. After the war when the narrator returned, and went to her house to take her mother's things back, she did not welcome her with a smile. She kept her standing at the door, and asked her to come some other day. Her selfish, inconsiderate and avaricious behavior hurt the already hurt narrator. Her intentions of misappropriating the author's mother's goods were quite clear.

Mrs S was a great Jew woman who became victim of war. She had been living peacefully in Holland with her daughter, the author when they had to leave in hurry to save their life. Mrs S was a perfect homemaker. She had an admirable collection of household things such as crockery, cutlery, and upholstery. She took meticulous care of them, and often cleaned them. Mrs S had given her precious and expensive household things to Mrs Dorling with the intention of taking them back after the war was over. The unfortunate Mrs S didn't live long enough to go back to Holland, and claim her things back from Mrs Dorling.      

Mrs Dorling was a greedy woman who did not return the belongings to the narrator. She herself had offered to take Mrs S's things to her home to take care of them as long as they would be away. Mrs S had  entrusted the task of taking care of her things before leaving to save their life from Nazi soldiers. After the war when the narrator returned, and went to her house to take her mother's things back, she did not welcome her with a smile. She kept her standing at the door, and asked her to come some other day. Her selfish, inconsiderate and avaricious behavior hurt the already hurt narrator. Her intentions of misappropriating the author's mother's goods were quite clear.

Mrs S was a great Jew woman who became victim of war. She had been living peacefully in Holland with her daughter, the author when they had to leave in hurry to save their life. Mrs S was a perfect homemaker. She had an admirable collection of household things such as crockery, cutlery, and upholstery. She took meticulous care of them, and often cleaned them. Mrs S had given her precious and expensive household things to Mrs Dorling with the intention of taking them back after the war was over. The unfortunate Mrs S didn't live long enough to go back to Holland, and claim her things back from Mrs Dorling

(i) Eating at home instead of at restaurants.

(ii)  Not buying branded products,but using unbranded products which are cheaper.

(iii) Doing household chores herself instead of employing others to do so.

(iv) Growing vegetable in own garden

(v) Using community facilities.

(vi) Bargaining prices with vendors and shopkeepers.

(vii) Using her own skills of stitching clothes,washing them and ironing them

(vii) Managing the allowance intelligently to save money. 

A map scale provides the relationship between the map and the whole or a part of the earth's surface shown on it. We can also express this relationship as a ratio of distances between two points on the map and the corresponding distance between the same two points on the ground.