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प्रश्न
Read the following passage and complete the activities:
A1. Complete the chart on the life stages of fireflies: (2)
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Fireflies are beetles and go through several life stages, starting out as an egg, then hatching into larvae. At the juvenile stage, they turn into pupae and then, finally adults. Fireflies spend most of their lives in a larval stage, hidden away. There are 2000 different species of fireflies. But they all go through a long juvenile stage and a short adult life, which is mainly about courtship, mating and reproduction. The juveniles living underground or underwater, are very different though-they're hunters, they eat snails and soft-bodied insects and they have very different habitats. Conserving them is essential for human life as fireflies are a key part of the food web. They are predators of agricultural pests. In turn, they are prey for spiders and other insects. They are completely enmeshed in the web of life. In addition, about 70 years ago, scientists unravelled the mystery of fireflies' light-producing talents. Since then, the bio-chemical reactions that fireflies experience have been used in detecting bacterial contamination in foods, testing drugs against cancer, developing drought-resistant crops. They have been used in space exploration. So fireflies give us beauty and inventions. Fireflies carry oxygen, calcium, magnesium and a natural chemical called luciferin. These react together to produce the photons. This is how the fireflies glow. Firefly tourism is growing across the world. In Maharashtra, for example, a particular species monsoon fireflies, emerge before the rains. They're beautiful and a festival is held in Purushwadi, encouraging firefly tourism. Its wonderful that people around the world go to see fireflies in their natural habitat. We need to be cautious. Too many people can disturb adult and larval habitats. Fireflies need darkness to communicate with each other and we need fireflies because they are harbingers of hope. |
A2. Write two reasons for the conservation of fireflies. (2)
A3. Make antonyms of the following words using prefix: (2)
- different × ______
- experience × ______
- bacterial × ______
- natural × ______
A4. Do as directed: (2)
(i) Too many people can disturb adult and larval habitat.
(Rewrite using 'as well as')
(ii) These react together to produce photons.
(Pick out the infinitive from the given sentence)
A5. Can you think of any other insect that teaches us some values of life? Explain with examples. (2)
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उत्तर
A1.
A2. Fireflies are preserved because the biochemical processes they go through are important for detecting bacterial contamination in food and testing anti-cancer medications, among other things. Oxygen, calcium, magnesium, and luciferin are also carried by fireflies.
A3.
- different × indifferent
- experience × inexperience
- bacterial × anti-bacterial
- natural × unnatural
A4. (i) Many people can disturb adult as well as larval habitat.
(ii) to produce
A5. Insect pollinators, such as bees, help with propagation and fruit production. They are also pest predators or parasites. Aside from that, they provide honey. Bees work extremely hard. They frequently work themselves to death. This is a source of inspiration for humans. They teach us to never give up, even when the odds are stacked against us.
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संबंधित प्रश्न
Read the passage given below:
Keeping cities clean is essential for keeping their residents healthy. Our health depends not just on personal hygiene and nutrition, but critically also on how clean we keep our cities and their surroundings. The spread of dengue and chikungunya are intimately linked to the deteriorating state of public health conditions in our cities.
The good news is that waste management to keep cities clean is now getting attention through the Swachh Bharat Mission. However, much of the attention begins and stops with the brooms and the dustbins, extending at most to the collection and transportation of the mixed waste to some distant or not so distant place, preferably out of sight.
The challenge of processing and treating the different streams of solid waste, and safe disposal of the residuals in scientific landfills, has received much less attention in municipal solid waste management than is expected from a health point of view.
One of the problems is that instead of focusing on waste management for health, we have got sidetracked into "waste for energy". If only we were to begin by not mixing the biodegradable component of solid waste (close to 60 percent of the total) in our cities with the dry waste, and instead use this stream of waste for compositing and producing a gas called methane.
City compost from biodegradable waste provides an alternative to farmyard manure (like cow-dung). It provides an opportunity to simultaneously clean up our cities and help improve agricultural productivity and quality of the soil. Organic manure or compost plays a very important role as a supplement to chemical fertilisers in enriching the nutrient-deficient soils. City compost can be the new player in the field.
Benefits of compost on the farm are well-known. The water holding capacity of the soil which uses compost helps with drought-proofing, and the requirement of less water per crop is a welcome feature for a water-stressed future. By making the soil porous, use of compost also makes roots stronger and resistant to pests and decay. Farmers using compost, therefore, need less quantity of pesticides. There is also evidence to suggest that horticulture corps grown with compost have better flavour, size, colour and shelf-life.
City compost has the additional advantage of being weed-free unlike farmyard manure which brings with it the seeds of undigested grasses and requires a substantial additional labour cost for weeding as the crops grow. City compost is also rich in organic carbon, and our soils are short in this.
Farmers clearly recognize the value of city compost. If city waste was composted before making it available to the farmers for applying to the soil, cities would be cleaned up and the fields around them would be much more productive.
Quite apart from cleaning up the cities of biodegradable waste, this would be a major and sustainable contribution to improving the health of our soil without further damage by excessive chemical inputs. What a marvellous change from waste to health!
The good news is that some states are regularly laying plastic roads. Plastic roads will not only withstand future monsoon damage but will also solve a city's problem of disposing of non-recyclable plastic. It is clear that if the mountains of waste from our cities were to be recycled into road construction material, it would tackle the problem of managing waste while freeing up scarce land.
(a) On the basis of your understanding of the above passage, make notes on it using headings and sub-headings. Use recognisable abbreviations wherever necessary (minimum four) and a format you consider suitable. Also supply an appropriate title to it.
(b) Write a summary of the passage in about 80 words.
Read the passage given below :
1. To ensure its perpetuity, the ground is well held by the panther both in space and in time. It enjoys a much wider distribution over the globe than its bigger cousins and procreates sufficiently profusely to ensure its continuity for all time to come.
(ii) in the branches of the trees
(iii) behind the tree trunks
(iv) at its heels
(ii) trains its cubs
(iii) watches the progress of the mother
(iv) is impulsive and impatient
Answer the following questions briefly :
(ii) came down / fell (para 7)
Read the passage given below and answer the questions that follow:
The most alarming of man’s assaults upon the environment is the contamination of air, earth, rivers, and sea with lethal materials. This pollution is for the most part irrevocable; the chain of evil it initiates is for the most part irreversible. In this contamination of the environment, chemicals are the sinister partners of radiation in changing the very nature of the world; radiation released through nuclear explosions into the air, comes to the earth in rain, lodges into the soil, enters the grass or corn, or wheat grown there and reaches the bones of a human being, there to remain until his death. Similarly, chemicals sprayed on crops lie long in soil, entering living organisms, passing from one to another in a chain of poisoning and death. Or they pass by underground streams until they emerge and combine into new forms that kill vegetation, sicken cattle, and harm those who drink from once pure wells.
It took hundreds of millions of years to produce the life that now inhabits the earth and reached a stage of adjustment and balance with its surroundings. The environment contained elements that were hostile as well as supporting. Even within the light of the sun, there were short wave radiations with power to injure. Given time, life has adjusted and a balance reached. For time is the essential ingredient, but in the modern world is no time.
The rapidity of change and the speed with which new situations are created follow the heedless pace of man rather than the deliberate pace of nature. Radiation is no longer the bombardment of cosmic rays; it is now the unnatural creation of man’s tampering with the atom. The chemicals to which life is asked to make adjustments are no longer merely calcium and silica and copper and all the rest of the minerals washed out of the rocks and carried in the rivers to the sea; they are the synthetic creations of man’s inventive mind, brewed in his laboratories, and having no counterparts in nature.
(a) On the basis of your understanding of the above passage make notes on it using headings and sub-headings. Use recognizable abbreviations (wherever necessary-minimum four) and a format you consider suitable. Also supply a title to it.
(b) Write a summary of the passage in about 80 words
Read the following extract and answer the questions given below:
Researchers recently announced the earth could actually withstand up to 200,000 times the current population. They arrived at this figure by calculating the amount of heat a human body emits, and only at 1·3 million billion would the earth be too hot to be habitable. And though it would feel like being ina can of sardines if that figure were ever reached, the earth is capable of comfortably sustaining a population several times the current 6·5 billion.
In fact, fertility is actually on the decline worldwide. Though the population has grown, the rate of growth has fallen sharply. Twenty years ago, the UN projected that the population would reach 11·I6 billion in 2050, today they say it will reach only 9·3 billion. Moreover, the human population will stabilize at about 11·5 billion. While this figure is almost twice the current one, it is hardly claustrophobic.
True, the demands on resources are heavy even now, but this is more due to the manner in which these resources are being used. In fact, figures show that a bigger population does not amount to greater consumption. Over 20% of the world's people in the highest-income countries account for 86% of total private consumption expenditure - the poorest 20% a tiny 1·3%. With just 5% of the world's population, the US consumes about 40% of the world's resources. Would you say the US is overpopulated?
Concerns on the scarcity of food are equally baseless. In fact, global food production has actually kept up with population growth. If people starve in many countries it is not because food is becoming scarce; it is because those people cannot afford it.
Questions:
(1) What conclusions did the researchers arrive at?
(2) How does the writer explain that fertility is on the decline?
(3) What does the extract predict about the fear of scarcity of food?
(4) How will the population become a gift in the global market scene?
(5) Rewrite the following sentences in the ways instructed:
(i) The earth could withstand up to 200,000 times the current population.
(Rewrite the sentence using the modal auxiliary showing 'certainty'.)
(ii) The earth would be too hot to be habitable.
(Remove 'too' and rewrite the sentence.)
(iii) These resources are being used.
(Rewrite the sentence beginning with, 'We ........... .')
(6) Write the antonyms of:
(i) habitable
(ii) stabilize
Read the first activity, read the extract and then do all the activities:
The next year Dell enrolled at the University of Texas. Like most first-year students, he needed to earn spending money. Just about everyone on campus was talking about personal computers. At the time, anyone who didn’t have a PC wanted one, but dealers were selling them at a hefty mark-up. People wanted low-cost machines custom-made to their needs, and these were not readily available. Why should dealers get such a big mark-up for so little added value ? Dell wondered. Why not sell from the manufacturer directly to the end user ?
Dell knew that IBM required its dealers to take a monthly quota of PCs, in most cases more than they could sell. He also knew that holding excess inventory was costly. So he bought dealers’ surplus stock at cost. Back in his dormitory room, he added features to improve performance. The improved models found eager buyers. Seeing the hungry market, Dell placed local advertisements offering his customized computers at 15 percent of retail price. Soon he was selling to businesses, doctors’ offices and law firms. The trunk of his car was his store; his room took on the appearance of a small factory.
During a holiday break, Dell’s parents told him they were concerned about his grades. “If you want to start a business, do it after you get your degree,” his father pleaded. Dell agreed, but back in college he felt the opportunity of a lifetime was passing him by. “I couldn’t hear to miss this chance,” he says. After one month he started selling computers again- with a vengeance.
A1. True / False - (2)
Rewrite the following sentences stating against each of them whether they are true or false :
(i) Dell bought computers directly from the IBM company.
(ii) Dealers were selling computers at high prices.
(iii) Dell’s father wanted Dell to get his degree.
(iv) Dealers disagreed to sell the surplus stock of computers to Dell.
A2. Give reasons - (2)
Dell wanted to stait a business of selling computers because :
(i) ____________
(ii) ____________
A3. Guess : (2)
“I couldn’t bear to miss this chance,” Dell says. Guess. which chance Dell did not want to miss”.
A4. Vocabulary - (2)
Find out the words from the extract which mean :
(i) college hall of residence
(ii) large amount added to the cost price
(iii) quantity of good in stock
(iv) with great intensity
A5. Personal response : (2)
Suggest two strategies businessman to become a successful businessman.
A6. Grammar - (2)
Rewrite the following sentences in the ways instructed :
(i) Seeing the hungry market, Dell placed local advertisement. (Make it a compound sentence)
(ii) He added features to improve performance. (Frame ‘Wh’ question to get the underlined part as an answer.)
Read the following extract and answer the questions given below:
But being named an 'AdarshGaon' is far from easy. Villages had to give a proposal after which a committee headed by Mr. Pawar inspected the villages. "The Villages had to show dedication in the struggle to fight mediocrity. They had to follow all the conditions of becoming an 'AdarshGaon'. We chose villages with a revolutionary spark, "Mr. Pawar says.
Villages need to follow strict rules. The process begins with effective water management through the watershed technique and water auditing. taking responsibility for the village's natural resources-planting trees and stopping grazing. contributing labour for the village work, and then expanding to bring about behavioral changes in the people for harboring social change. Hiware Bazaar is free of any kind of addiction and there are no liquor or tobacco shops in the village. Vasectomy has been made compulsory, as is the pre-marital HIV test.
The 'AdarshGaon' model prides itself on being based on the joint decisions made by the Gram Sabha, where all the villagers are present. Even while selecting the new villages under the scheme, Mr. Pawar made sure that the decision to become an ideal village was taken by the entire village together.
The greatest victory for Hiware Bazaar so far has been the reverse migration that the village has witnessed since 1989. As many as 93 families have come back to the village," from the slums in Mumbai and Pune," Mr. Pawar says.
Questions:
(1) What features of 'Adarsh Gaon' are given in this extract?
(2) What is the procedure for selecting 'Adarsh Gaon'?
(3) What is the greatest victory for Hiware Bazaar?
(4) Do you think all villages in Maharashtra should follow the ideals of Hiware Bazaar? why?
(5) Rewrite the following sentences in the ways instructed :
i. Mr. Pawar inspected the villages.
(Rewrite it using the noun form of the word underlined.)
ii. Vasectomy has been made compulsory by the villagers.
(Rewrite it beginning with-"The villagers........".)
iii. There are no liquor or tobacco shops in the village.
(Rewrite it using 'neither......nor'.)
(6) Find out the words from the extract which mean:
(i) causing a great change
(ii) the quality of being average
Based on the careful reading of the passage given below, answer any four out of five questions that follow:
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Climate change and global warming are the biggest threats of the present time and how the world manages to control pollution will define our future. Rising industrialization, urbanization, deforestation etc., are endangering the natural ecosystem. Since 1880, the earth’s temperature has been rising at a rate of 0.14° F (0.08° C) per decade and the rate of increase has doubled since 1981 at 0.32° F (0.18° C) per decade. The 10 warmest years on record have occurred since 2015, with 2020 recorded as the second-warmest year as per the National Oceanic and Atmospheric Administration (NOAA). With growing economies, global carbon measurements have been rapidly rising for the last 15 years. As per recent data, in January 2022, carbon dioxide (CO2) measurement stood at 418 parts per million, up around 11% from 378 parts per million recorded since 2007. |
(a) What is the key to defining our future?
- The means employed to control pollution.
- The means employed to control resources.
- The means employed to control state policies.
- The means employed to educate masses.
(b) Which of the following elements are not responsible for endangering natural ecosystem?
- Deforestation
- Inflation
- Industrialization
- Urbanization
(c) According to the passage, economy, and carbon emissions have been ______ to each other for last 15 years.
- Inversely proportionate
- Directly proportionate
- Not related
- Disproportionate
(d) Name the institution responsible for observing and recording earth’s temperature over the years.
- National Organic and Atmospheric Administration
- National Oceanic and Atmospheric Administration
- North Organic and Atmospheric Administration
- National Offshore and Atmospheric Administration
(e) Carbon dioxide measurement stood at ______ parts per million in 2007.
- 387
- 378
- 481
- 418
Read the following excerpt from a Case Study. J.K. Rowling - A Journey.
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The story of Joanne Kathleen Rowling's near magical rise to fame is almost as well known as the characters she creates. Rowling was constantly writing and telling stories to her younger sister Dianne. "The first story I ever wrote down was about a rabbit called Rabbit." Rowling said in an interview. "He got measles and was visited by his friends including a giant bee called Miss Bee. And ever since Rabbit and Miss Bee, I have always wanted to be a writer, though I rarely told anyone so. However, my parents, both of whom come from impoverished backgrounds and neither of whom had been to college, took the view that my overactive imagination was an amusing personal quirk that would never pay a mortgage or secure a pension. A writer from the age of six, with two unpublished novels in the drawer, she was stuck on a train when Harry walked into her mind fully formed. She spent the next five years constructing the plots of seven books, one for every year of his secondary school life. Rowling says she started writing the first book, Harry Potter and the Sorcerer's Stone, in Portugal, where she was teaching English. At first nobody wanted to publish Harry Potter. She was told that plot was too complex. Refusing to compromise, she found a publisher. In 1997 Rowling received her first royalty cheque. By book three, she had sky rocketed to the top of the publishing world. A row of zeroes appeared on the author's bank balance and her life was turned upside down. Day and night she had journalists knocking on the unanswered door of her flat. Rowling's quality control has become legendary, as her obsession with accuracy. She's thrilled with Stephen Fry's taped version of the books and outraged that an Italian dust jacket showed Harry minus his glasses. "Don't they understand that the glasses are the clue to his vulnerability." Annual earnings of J.K. Rowlin from 2010 to 2019
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On the basis of your understanding of the passage answer any five of the six questions given below. (5)
- Explain J. K. Rowling's 'near magical rise to fame'.
- What reason did the publishers give for rejecting Rowling's book?
- What was the drawback of achieving fame?
- Why was Rowling outraged with the Italian dust jacket?
- Find a word in the last para that means the same as 'insecure/helpless'.
- According to the graph, how many years did it take Rowling to become very successful?
Read the extract given below:
| (1) | Necessity is indeed the mother of invention. When areas in and around Leh began to experience water shortages, life didn't grind to a halt. Why? Because a retired civil engineer in the Jammu and Kashmir Government came up with the idea of artificial glaciers. |
| (2) | Ladakh, a cold desert at an altitude of 3,000 - 3,500 meters above sea level, has a low average annual rainfall rate of 50 mm. Glaciers have always been the only source of water. Agriculture is completely dependent on glacier melt, unlike the rest of river/monsoon-fed India. But over the years, with increasing effects of climate change, rainfall and snowfall patterns have been changing, resulting in severe shortage and drought situations. Given the extreme winter conditions, the window for farming is usually limited to one harvest season. |
| (3) | It is located between the natural glacier above and the village below. The one closer to the village and lowest in altitude melts first, providing water during April-May, the crucial sowing season. Further, layers of ice above melt with the increasing temperature, thus ensuring continuous supply to the fields.
Therefore, farmers have been able to manage two crops instead of one. It costs about 1,50,000 and above to create a glacier. |
| (4) |
Fondly called the glacier man, he has designed over 15 artificial glaciers in and around Leh since 1987. In recognition of his pioneering effort, he was conferred the Padma Shri by The President of India. |
| (5) |
There are a few basic steps followed while creating an artificial glacier. River or stream water at high altitude is diverted to a shaded area of the hill, facing north, where the winter sun is blocked by a ridge or a mountain range. At the start of winter ie., in November, the diverted water is made to flow on sloping hills facing distribution channels. Stone embankments are built at regular intervals which impede the flow of water, making shallow pools which freeze, forming a cascade of ice along the slope. Ice formation continues for 3-4 months resulting in a large accumulation of ice which is referred to as an ‘artificial glacier’. |
Based on your understanding of the extract, answer the questions below:
- Infer one reason for, the following, based on information in paragraph 1. (1)
Areas in and around Leh began to experience water shortage but life didn't grind to a halt. - Select from the passage the appropriate option to fill in the blanks: (1)
Agriculture is completely dependent on ______ unlike the rest of river/monsoon-fed India.- rainfall pattern
- climate change
- glaciers melt
- extreme winter conditions
- Complete the following analogy correctly with a word/phrase from paragraph 3: (1)
Icing : cake :: layers : ______. - Select the correct option to complete the following sentence: (1)
At the start of winter the diverted water is made to flow ______.- on sloping hills facing distribution channels.
- on high altitude.
- on ice-cold water level.
- on mountain range.
- From the chart select the months of water surplus. (1)
- January, February.
- November, December.
- July, August, September.
- March, April
- Fill in the blank by selecting from the passage the correct option: (1)
The ______ have been the only source of water in areas in and around Ladakh.
- glaciers
- rivers
- streams
- water springs
- The word 'located' in paragraph 3 means: (1)
- found
- locally found
- situated
- adapted
- Write any two steps followed while creating the glaciers. (1)
- List one reason why artificial glaciers seem the best option. (1)
- Select the most suitable title from the following for the passage: (1)
- Water Shortage.
- New Ways Pool Water.
- Artificial Glacier.
- River Beds.
Read the following text.
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Arthur lay in his cabin, still trying to piece together the events of the last few hours. He had watched his home planet of Earth be demolished to make way for a hyperspace bypass, been saved by his friend Ford, and then whisked away on a ship that was powered by an "infinite improbability drive." It was all too much for him. |
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5. |
Just then, Ford stuck his head around the door. |
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10 |
"What's that?" asked Arthur. |
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15 |
"I don't know," said Arthur. "I don't think I really understand anything anymore. Why is a mouse the ship's computer?" |
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20 |
Arthur was about to say something, but at that moment the ship's intercom crackled to life. |
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25 |
"Eddie, would you mind shutting up?" said Arthur. |
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30 |
"It's me," said the voice. "Marvin." |
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35 |
Arthur looked down and saw a small, metal figure shuffling across the floor. It was about three feet tall, with a round head and a body that looked like it had been cobbled together from spare parts. Its eyes were a dull red, and its voice was a monotone. |
Answer the following questions, based on the passage above.
- Select the option that classifies Arthur's confusion about drastic events such as the destruction of his home planet and the introduction of new technologies, correctly. (1)
- Routine and boredom
- Adventure and excitement
- Loss and change
- Calm and relaxation
- What is the significance of the white lab mouse in the control room of the Heart of Gold spaceship? (1)
- It is the captain of the ship
- It serves as the ship's computer
- It is a pet of the crew
- It is used for scientific experiments
- Share evidence from the text, in about 40 words to support the view that the writer’s writing style is descriptive and humourous. (2)
- Complete the sentence appropriately with a characteristic or its description. (1)
Based on the information given in the excerpt, one can infer that the mice who built the Earth are ______. - Select the option that is similar in meaning to Ford’s expression, “Pretty neat, huh?". (1)
- Easy, isn’t it?
- Could be worse, no?
- Impressive, yes?
- Too difficult for you?
- Explain, in about 40 words, why the name "The Paranoid Android" is considered ironic. (2)
- In the line, “…a body that looked like it had been cobbled together from spare parts…”, what comparison does the word “cobbled” refer to? (1)
- How does the following, impact the reader, even though they know Marvin is just an android? (2)
"I've been waiting for someone to talk to me for over two million years," said Marvin. Answer in about 40 words. - Read the five headlines (a) -(e), given below: (1)
(a) HUMANITY'S JOURNEY WITNESSED BY A DEPRESSED ROBOT
(b) HITCHHIKING THROUGH SPACE: A COMICAL TAKE ON THE END OF THE WORLD
(c) NEW STUDY FINDS ALIENS LIVING AMONG US
(d) GROUNDBREAKING TECHNOLOGY WILL SOON ENABLE TIME TRAVEL
(e) INTERGALACTIC TRAVEL VIA NEW INFINITE IMPROBABILITY DRIVE
Identify the option that displays the headline/s that DOES/ DO NOT correspond with occurrences in the passage.- Only (a)
- (b) (c) and (d)
- Only (e)
- (a) and (e)
