"Ranga's Marriage" by Masti Venkatesha Iyengar is a short story set in rural India that explores the themes of social hierarchy, traditions, and the struggles faced by individuals who challenge societal norms. Here are the important points of the story:

"Discovering Tut: The Saga Continues" by A.R. Williams is an intriguing account of the discovery and excavation of the tomb of the ancient Egyptian pharaoh Tutankhamun, also known as King Tut. It explores the historical significance of the discovery and the mysteries surrounding the young pharaoh's life and death. Here are the important points of the story:

"The Summer of the Beautiful White Horse" by William Saroyan is a short story that revolves around the themes of honesty, friendship, and the loss of innocence. It is set in Fresno, California, during the Great Depression. Here are the important points of the story:

"The Ailing Planet: The Green Movement's Role" is an essay written by Nani Palkhivala that focuses on the environmental challenges faced by the world and the role of the green movement in addressing these issues. Here are the important points discussed in the essay:

"We're Not Afraid to Die... if We Can All Be Together" is a gripping true story written by Gordon Cook and Alan East. It recounts the authors' experiences as they embark on a perilous around-the-world sailing journey that tests their courage, resilience, and determination. Here are the important points of the story:

"The Portrait of a Lady" by Khushwant Singh is a short story that explores the themes of love, relationships, and the complexities of human nature. The story revolves around a young girl named Ameena, who becomes the object of affection for two men from different backgrounds. Here are the important points of the story:

"The Book That Saved the Earth" is a science fiction story written by Claire Boiko. It is a humorous and imaginative tale that explores the themes of the power of literature, the importance of knowledge, and the value of storytelling. The story follows a group of aliens who come across a mysterious book from Earth and its surprising impact on their society.

"Bholi" is a short story written by K.A. Abbas. It addresses the themes of gender discrimination, self-acceptance, and the power of education. The story revolves around a young girl named Bholi, who faces ridicule and mistreatment due to her appearance but ultimately finds her strength and identity.

1. Why did Matilda think that she was born in a family of petty clerks by some error of destiny?

Matilda was a beautiful young lady with high dreams and aspirations. She had no dowry, no hopes, no fame and no wealth. She lost all hopes of marrying a man either rich or distinguished. She believed that she was born into a family of clerks only by some error of destiny. So, she allowed herself to marry a petty clerk in the office of the Board of Education.

1. How did Richard Ebright excite the scientific world at the age of twenty two?

Richard Ebright was just twenty-two when he ‘excited’ the scientific world with a new theory. It was on how cells worked. Ebright and his college room- mate explained the theory in an article in the ‘Proceedings of the National Academy of Science’. It was the first time that this famous scientific journal had ever published the work of college students.

1. Why were the two boys surprised and fascinated?

The two boys were highly surprised. They saw fresh muddy imprints of a pair of bare feet. They wondered what a barefooted man doing on the steps of a house in the middle of London. They saw only the footsteps but didn’t see the man whose marks they were. As they gazed, a fresh foot mark appeared from nowhere. The boys followed them fascinated. The marks became fainter and disappeared altogether.

1. Who was Horace Danby?

Horace Danby was about fifty years old and unmarried. Everyone thought that he was a good and honest citizen. He lived with a housekeeper who worried about his health. He suffered from the attacks of hay fever in summer. He made locks and was successful at his business. But he was not completely honest. He robbed a safe once a year to buy rare and costly books.

1. Why did Hari Singh think that Anil’s job was queer?

Anil contributed to magazines. He wrote for a living. He didn’t earn much. Nor did he have a regular income. He couldn’t afford to have a servant. So it was difficult for Hari Singh to understand his profession.

1. Describe the early life of Gautama Buddha.

Gautama Buddha began life as a prince. He was named Siddhartha Gautama. He was sent away for schooling in the Hindu sacred scriptures at twelve. When he returned home, he was married to a princess. He lived in royal luxury, shielded from the sufferings up to the age of twenty-five.

1. What was the favourite pastime of Valli?

Valliammai or Valli was eight years old. Her favourite pastime was standing in the front doorway of her house. From there, she watched what was happening in the street outside. For her, standing at the front door was as enjoyed as any of the games other children played.

1. What had crossed the author’s mind and why? (Or) Why did Maxwell think of keeping an otter as a pet?

Maxwell’s favourite dog Jonnie died. It left him alone without a pet. He travelled to Southern Iraq in 1956. By then it has crossed his mind that he should like to keep an otter instead of a dog. The place he lived on was ringed by water. It was quite a suitable place for his new experiment.

1. How did the baker become synonymous with celebrations and occasional in Goa?

The village baker was very important for festive occasions. Marriage gifts were meaningless without the sweet bread known as ‘bol’. Sandwiches, cakes and bolin has were a must for Christmas as well as other festivals. These were made with the bread.

"The Hundred Dresses - II" is the sequel to the chapter "The Hundred Dresses - I" in the Class 10 English textbook. It continues the story of Wanda Petronski and explores the consequences of bullying and the power of remorse and forgiveness.

"The Hundred Dresses - I" is a chapter from the Class 10 English textbook that tells the story of a young girl named Wanda Petronski who faces bullying and prejudice in school. The chapter explores themes of empathy, kindness, and the impact of our words and actions on others.

1. Why does Anne feel that writing in a diary is really a strange experience?

It must be remembered that Anne Frank was just a thirteen-year-old girl. She was in the hiding and cut off from the larger world. She was hesitant that no one would be interested in the musings of a young girl. She had never written anything before. So, it was naturally a strange experience for her.

1. Why was the young seagull afraid to fly?

The young seagull was afraid to fly because he thought his wings would not support him. He was very weak. All young birds are afraid to make their first flight.

1. Why was 10th of May 1994 a red letter day in the history of South Africa?

10th of May 1994 was a red-letter day in the history of South Africa. It was the day when the hated regime of apartheid came to an end. A new democratically elected non-racial government under Nelson Mandela was to the sworn in many international leaders and dignities came to pay their respect to the new government.

1. Where was Lencho’s house situated?

Lencho was a farmer. His house was the only one in the valley. It was situated on the top of a low hill overlooking the valley. From this height, he could see the river. He could also see his fields of ripe corn dotted with flowers. The flowers always promised a good harvest.

This is a story about a beggar Lushkoff who used to beg posing as a school teacher or a student. He meets an advocate Sergei who offers him a job at his house.

This story reflects the challenges of being a teenager, and the problems of growing up. The narrator in this story is a teenager who finds it difficult to make new friends and adjust to a new place. He feels lonely and depressed. But soon his misconceptions about people are removed.

The story ‘The Last Leaf’ is a story of supreme sacrifice by an old artist. The old artist Behrman paints a masterpiece to keep someone’s hopes and willpower alive. He dies in this good cause. His sacrifice fulfils his ambition of creating a masterpiece too. Johnsy and Sue were two young artists.

This story is a true account of the devastation brought about in Orissa (now Odisha) in 1999 by a super cyclone. On 27th October 1999, Prashant, a young boy of 19, went to Ersama to his friend’s house. Ersama is a small town in coastal Orissa which is eighteen kilometres from village.

This is the story of the statue of a prince and a little swallow who, in order to help the poor, sacrificed their lives. There was the statue of a prince called the Happy Prince standing on a tall pillar high above the city.

It is the story of a kingdom where the king and his minister both were idiots. They had ordered that the night be treated as day and all the people should work only after dark. They should go to bed as soon as the sun came up. The king’s orders were followed by the people for fear of death. This delighted the king and his minister.

Mehendra was a junior supervisor in a firm which offered on hire supervisors at different sites. He was a bachelor. A cook, Iswaran,ss was attached to him. Iswaran cooked for him, washed his clothes and performed other household chores.

The narrator’s grandfather loved animals. He had his own private zoo. He bought a baby monkey from a tonga-driver and named it Toto. He wanted Toto to add to his collection for the zoo. The narrator’s grandmother did not like his pets. So, Toto’s presence was kept a secret.

This story highlights a child’s love for his parents. It is the festival of spring. Everyone is going to a fair. The child is very happy and excited because he is also going to the fair with his parents. On the way to the fair, the child is fascinated by the natural beauty. He enjoys every moment.

Preparing for a trip is sometimes more fun than the trip itself. In this story, the author and his friends, George and Harris, are packing for a trip. It is a humorous story. The humour lies in the funny actions of the author and his friends.

Dr. Kalam in his autobiography tells us about his childhood. One of the world’s greatest scientists. Dr. Kalam was born it to a middle-class Muslim family in 1931 at Rameswaram. His journey from a middle-class family in Rameswaram to the President’s House was not a smooth one.

"The Snake and the Mirror" is a frightening tale told in a humorous way. The story has been written by V.M. Basheer, a well-known Malayalam writer. The incident in the story is both humorous and frightening. It also has a surprise ending.

Albert Einstein was born on March 14, 1879, in the German city of Ulm. He had a large head and his mother thought that he was a freak. He was a late talker. He could never adjust with his playmates who used to call him ‘Brother Boring.’

All fathers are not alike. Some show their love and affection for their children and play with them. Others also love and care for their children but they show it by working hard for them and giving them instructions and advice.

Evelyn Glennie is a multi-percussionist. She can play about one thousand instruments with perfection. She listens to sound without hearing it! She fought against a physical disability and became a source of inspiration for thousands of disabled persons.

The concept of set serves as a fundamental part of the present day mathematics. Today this concept is being used in almost every branch of mathematics. Sets are used to define the concepts of relations and functions. The study of geometry, sequences, probability requires the knowledge of sets.

In earlier classes, we studied about the concept of probability as a measure of uncertainty of various phenomenon. We have obtained the probability of getting an even number in throwing a die as 3/6 or 1/2. Here the total possible outcomes are 1,2,3,4,5 and 6 (six in number).

Statistics deals with data collected for specific  purposes. We can make decisions about the data by analysing and interpreting it.

Calculus is that branch of mathematics which mainly deals with the study of change in the value of a function as the points in the domain change.

To locate the position of a point in a plane, we need two intersecting mutually perpendicular lines in the plane. These lines are called the coordinate axes and the two numbers are called the coordinates of the point with respect to the axes.

In this Chapter, we will study about some curves - circles, ellipses, parabolas and hyperbolas. The names parabola and hyperbola are given by Apollonius. These curves are in fact, known as conic sections or more commonly conics because they can be obtained as intersections of a plane with a double napped right circular cone.

Amines can be considered as derivatives of ammonia obtained by replacement of hydrogen atoms with alkyl or aryl groups.

Carbohydrates are optically active polyhydroxy aldehydes or ketones or molecules which provide such units on hydrolysis. They are broadly classified into three groups - monosaccharides, disaccharides and polysaccharides.

A solution is a homogeneous mixture of two or more substances. Solutions are classified as solid, liquid and gaseous solutions. The concentration of a solution is expressed in terms of mole fraction, molarity, molality and in percentages.

Two-dimensional coordinate geometry is a combination of algebra and geometry. A systematic study of geometry by the use of algebra was first carried out by celebrated French philosopher and mathematician René Descartes, in his book ‘La Géométry, published in 1637.

In mathematics, the word, "sequence" is used in much the same way as it is in ordinary English. When we say that a collection of objects is listed in a sequence, we usually mean that the collection is ordered in such a way that it has an identified first member, second member, third member and so on.

An electrochemical cell consists of two metallic electrodes dipping in electrolytic solution(s). Thus an important component of the electrochemical cell is the ionic conductor or electrolyte.