Answer : Modern civilization differs from the great cultures of the distant past in that we have mastered the use of numbers. A railroad engine may have developed in Athens or Babylon, but even the most scientific minds could not have planned or comprehended a railroad timetable. In other words, we have mastered the skill of calculation, and new applications for it emerge every day. The average person can easily figure out answers to problems that stumped ....

Answer : All around us, various technologies are maturing and changing the world in nuanced, unpredictable ways. In order to prepare for the future, we must pay attention to lesser-known but equally significant aspects of the natural world. Several of these have the potential to produce technologies that will change the game and lead to new insights.

Future Frontiers of Science

As we might anticipate, the technologies that so many of us read about and discuss have promise for ....

Answer : The majority of us encounter literature for the first time in a serious way in school. All of us have had reading and writing drilled into us since we were young, and the start of exams sets this in motion. From the viewpoint of a student, it is categorical and essential to be able to empathize with a cast of characters on a page. Additionally, being able to discern themes and messages allows us to ....

Answer : Some people's conception of a minimalist lifestyle involves giving up all of the world's modern conveniences. They picture themselves living in a log cabin in the woods with no electricity, a wood stove, and an outdoor lavatory. There may be some people who live in this manner, but not everyone who practices minimalism must go to this extreme. There are other ways minimalism can be utilised that do not require any real sacrifices.

A minimalist is ....

Answer : Journalism is a medium of collecting, writing and reporting news, and more broadly it includes the process of editing and presenting the news articles. Journalism is not only confined to publishing news in the newspapers, but also includes magazines, radio, and television.

Unfortunately, at present, Journalism is plagued by sensationalism and wrong reporting. Rather than making people aware of the ongoing events around the world, it focuses on presenting an exaggerated, distorted and perverted version of ....

Answer : We can access information in better way. People who have a childhood and pubescent life minus the internet are faced with the difficulty of getting access to vital information and knowledge they need for education. With the birth of the internet, every single bit of information or knowledge a child or teen needs to learn is compiled in a very large library called the World Wide Web. With social networking, research is a thousand times ....

Answer : In India, fitness and health care is becoming a serious business and the growing popularity. There have always been fitness fanatics and motorcycle-riding, bicep-flaunting men but it’s refreshing to see fitness being brought into the urban mainstream.

Of course there is the risk of this going too far and leading to a generation of young women dealing with eating disorders and body image issues in a quest to look like Bollywood stars.

But right now, it’s ....

Answer : Cultivation of organic food is a method of crop and livestock production that involves much more than choosing not to use pesticides, fertilizers, genetically modified organisms, antibiotics and growth hormones.

Organic production is a holistic system designed to optimize the productivity and fitness of diverse communities within the agro-ecosystem, including soil organisms, plants, livestock and people. The principal goal of organic production is to develop enterprises that are sustainable and harmonious with the environment.

Consumers purchase organic ....

Answer : Despite nuclear energy’s potential as a low-carbon replacement for baseload fossil fuel generation, the public remains sceptical. However, as matters stand, it is looking increasingly uncertain that energy markets, particularly in Europe and the US, will support nuclear energy assuming this more central role. Nuclear energy is in relative decline, with its share of worldwide energy supply dropping from 18% in 1996 to 11% in 2013. And although there are more than 70 nuclear reactors ....

Answer : Today mobile phone has become something indispensable.Business is next to impossible without a mobile phone. Starting from aviation industry to service sector, the mobile phones are playing an important and vital role. The use of a mobile phone is not limited to speaking alone it is being used in making video, recording information and transmitting it to a phone or a computer as was being done by a computer. Mobile phone can be connected to ....

Answer : There is an increasing number of people in the United States today who are standing up and speaking out against the dangers of nuclear weapons. At the same time a large number of these people are in favor of the use of nuclear power as a means of generating electricity. They believe, perhaps correctly, that the threat from the former is greater and more imminent, and further, that there is no connection between nuclear power ....

Answer : (i) Pooja can speak French

Ans: Pooja can speak French, can’t she?

(ii) The meeting is at ten.

Ans: The meeting is at ten, isn’t it?

(iii) You dint speak to Mohan.

Ans: You didn’t speak to Mohan, did she?

(iv) She wouldn’t like a pet.

Ans: She wouldn’t like a pet, would she?

(v) Harish gave you a cheque.

Ans: Harish gave you a cheque, didn’t ....

Answer : (i) rebel

Ans: The people rebelled against the harsh new government.

(ii) export

Ans: French cheeses are exported to many different countries.

(iii) ring

Ans: I rang the bell but nobody came to the door.

(iv) warm

Ans: We can warm up the room pretty quickly with this electric heater.

(v) experiment

Ans: The school is experimenting with new teaching ....

Answer : (i) Pitch (as noun and verb)

Noun- Her voice rose steadily in pitch.

Verb- You’ve pitched the melody very high.

(ii) Mirror (as noun and verb)

Noun- He checked his appearance in the mirror.

Verb- The clear water mirrored the sky.

(iii) Humble (as adjective and verb)

Adjective- I felt very humble when meeting her.

Verb- He was humbled by his many ordeals.

(iv) In (as adverb and preposition)

Adverb- come in and sit down.

Preposition- He is staing in ....

Answer : (i) Poets often (sore, soar) to great heights of imagination.

Ans: Soar

(ii) Knowledge (preceeds, proceeds) from the Goddess of Learning.

Ans: Proceeds

(iii) The tower was struck by (lightning, lightening) and fell down.

Ans: Lightning

(iv) Kanpur lies on the air (rout, route) to Calcutta.

Ans: Route

(v) Everyone is (jealous, zealous) of him.

Ans: jealous

(vi) The crocodile emerged from the river and (seized, ceased) a goat.

Ans: Seized

(vii) He was found in (collusion, collision) with the plotters.

Ans: Collusion

(viii) ....

Answer : (i) He had to sign or be executed.(Turn into a complex sentence)

Ans: He had to be executed if he had not signed it.

(ii) Given the order. (Use the passive form)

Ans: The order was given.

(iii) I was doubtful whether it was you. (Turn into a negative sentence)

Ans: I was not sure whether it was you.

(iv) He was disgraced his family. (Use the noun form of “disgraced”)

Ans: He is in disgrace due to his family.

(v) He was ....

Answer : (i) No metal is as costly as gold. (Use the comparative degree of “costly”)

Ans: Gold was costlier than any other metal.

(ii) I doubt if you have done it. (Change into a negative sentence without changing the meaning)

Ans: You have done it, have you?

(iii) He was elected leader. (Change into active voice)

Ans: People elect him leader.

(iv) She confessed that she was guilty. (Turn it into a simple sentence)

Ans: She declared her guilt.

(v) She said, “Can you ....

Answer : (i) “Do not make a noise.” said the teacher to his students. (Change into indirect form)

Ans: The teacher instructed his students not to make a noise.

(ii) Han is so short that he cannot touch the ceiling. (Replace ‘so by ‘too’)

Ans: He is too short to touch the ceiling.

(iii) I gave him a ten-rupee note yesterday. (Change into passive voice)

Ans: He was given a ten-rupee note yesterday.

(iv) She bought a house last year. The house is ....

Answer : (i) You are too early for the show. (Use “enough”)

Ans: You are early enough for the show.

(ii) The Mahanadi is not as long as the Ganga. (Use the comparative degree)

Ans: The Ganga is longer than the Mahanadi.

(iii) Varsha readily complied ………….….. my request. (Fill in the gap with a preposition)

Ans: Varsha readily complied with my request.

(iv) We are sure of his honesty. (Change into a complex sentence)

Ans: We are sure that he is an honest ....

Answer : (i) “Shut the door after you,” she told him curtly. (Change into indirect form)

Ans: She ordered him to shut the door.

(ii) Did she commit all the mistakes?(Change into passive voice)

Ans: Were all the mistakes committed by her?

(iii) Many difficulties are impossible to overcome. (Use a single word forthe underlined phrase)

Ans: Insurmountable

(iv) Hard as he tried, the old man failed to find a buyer for his bicycle. (Use “though’’)

Ans: Though the old man tried hard but ....