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प्रश्न
How does an electric fan managed to throw so much air when it is switched on?
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उत्तर
An electrical fan comprises of three blades and a whirling motor. The moment it is switched on. the motor starts and begins to rotate, forcing the blades to move in circular movement. this generates a lot of pressure, which forces the air downwards in all directions.
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संबंधित प्रश्न
What is Behrman’s masterpiece? What makes Sue say so?
Listen to the extract on Tigers read by teacher/ student which is given below , and as you listen, complete the summary given below.
Save Tigers
The price of human greed is being paid by yet another animal species the Tiger. Today the tiger population is getting depleted at an alarming rate. According to a recent survey, one tiger is being poached everyday. If the present state of affairs is allowed to continue, the next generation will not get to see the majestic animal even in the zoo.
It is high time that action is taken to protect and conserve the tigers in order to maintain the ecological balance. Stringent laws against poachers must be enforced. It is over 40 years since the tigers became our national animal. As a result, the species was to be protected. Ironically, they are closer to extinction now than ever before. Children, scientists, conservationists, NGOs and institutions in India and world wide have put their heart and soul into trying to save the tiger. Yet there is little we all have been able to do. The responsibility and the power of protection lies with the government, specifically the forest department.
Let us not forget that if we destroy nature, ultimately we will be destroyed ourselves.
Tiger, an apex predator is an indicator of our ecosystem's health. Saving the tiger means we save the forest, since tiger cannot live in places where trees have vanished, and in turn secure food and water for all.
Tigers are now an endangered species. Today there are about 5000 to 7,400 left in the world. Three types of tigers - The Bali, Javan and Caspian tigers have become extinct. The two reasons why tigers are endangered are: Habitat loss and illegal killing.
Illegal Killing
One of the most concerning threat to our national animal that needs to be recognised is poaching. Tigers are killed to make rugs and coats out of their skins.
In many Asian cultures medicines made from tiger's body organs are believed to cure diseases.
Habitat Loss
Forests where tigers live are cut by humans for farming, building houses and roads. This leads to tigers becoming homeless and without any food. Since other animals also die when forests are cut, it leads to tigers becoming weak and their ultimate death.
Project Tiger
Project Tiger is a wildlife conservation project initiated in India in 1972 to protect the Bengal Tigers. It was launched on April 1, 1973 and has become one of the most successful wild life conservation ventures. The project aims at Tiger conservation in specially constituted Tiger reserves representative of various bio geographical regions through out India. It strives to maintain a viable conservation based on tiger population in their natural environment.
Project Tiger was Indira Gandhi's pet project. The main achievements of this project are excellent recovery of the habitat and consequent increase in the tiger population in the reserve areas, from a mere 268 in 7 reserves in 1972 to above one thousand in 28 reserves in 2006.
Tigers being at the apex of the food chain can be considered as the indicator of the integrity of the ecosystem. They can be found in a wide range of habitats, from the evergreen and monsoon forests of the Inda-Malayan realm to the mixed coniferous - deciduous woodlands of the Far east Russia and the mangrove swamps of the Sundarbans, shared by India and Bangladesh.
Tigers are mostly nocturnal but in the northern part of its range, the Siberian subspecies may also be active during the day at winter-time. All wild tigers live in Asia, others live in the humid jungles of Sumatra. The body length is 140 - 280 cm and the tail length is 60 to 95 cm. The upper part of the animal ranges from reddish orange to ochre and the under parts all whitish. The body has a series of black stripes of black to dark grey colour.
He looked at me very blankly and tiredly, and then said, having to share his worry with someone, “The cat will be all right, I am sure. There is no need to be unquiet about the cat. But the others. Now what do you think about the others?”
“Why they’ll probably come through it all right.”
“You think so?”
“Why not,” I said, watching the far bank where now there were no carts.
“But what will they do under the artillery when I was told to leave because of the artillery?”
“Did you leave the dove cage unlocked?” I asked.
“Yes.”
“Then they’ll fly.”
“Yes, certainly they’ll fly. But the others. It’s better not to think about the others,” he said.
Read the extract given below and answer the question that follow.
Why is the old man worried about the goats?
But even as he approached the boy, Mr. Oliver sensed that something was wrong. The boy appeared to be crying. His head hung down, he held his face in his hands, and his body shook convulsively. It was a strange, soundless weeping, and Mr. Oliver felt distinctly uneasy.
Well, what’s the matter, he asked, his anger giving way to concern. What are you crying for? The boy would not answer or look up. His body continued to be wracked with silent sobbing.
Oh, come on, boy. You shouldn’t be out here at this hour. Tell me the trouble. Look up.
Read the extract given below and answer the question that follow.
What did the boy appear to be doing?
The women came out on the shore, and made for the stepping—?stones. They had plenty to laugh and bicker about, as they approached the river in a noisy crowd. They girded up their skirts, so as to jump from stone to stone, and they clanked their sickles and forks together over their shoulders to have ease of movement. They shouted their quarrels above the gush of the river. Noise frightens crocodiles. The big mugger did not move, and all the women crossed in safety to the other bank. Here they had to climb a steep hillside to get at the grass, but all fell to with a will, and sliced away at it wherever there was foothold to be had. Down below them ran the broad river, pouring powerfully out from its deep narrow pools among the cold cliffs and shadows, spreading into warm shallows, lit by kingfishers. Great turtles lived there, and mahseer weighing more than a hundred pounds. Crocodiles too. Sometimes you could see them lying out on those slabs of clay over there, but there were none to be seen at the moment.
Read the extract given below and answer the question that follow.
Why did the women rolled their skirts up?
“Do the scientists really know? Will it happen today, will it ?”
“Look, look; see for yourself !”The children pressed to each other like so many roses, so many weeds, intermixed, peering out for a look at the hidden sun. It rained. It had been raining for seven years; thousands upon thousands of days compounded and filled from one end to the other with rain, with the drum and gush of water, with the sweet crystal fall of showers and the concussion of storms so heavy they were tidal waves come over the islands. A thousand forests had been crushed under the rain and grown up a thousand times to be crushed again. And this was the way life was forever on the planet Venus, and this was the schoolroom of the children of the rocket men and women who had come to a raining world to set up civilization and live out their lives.
Read the extract given below and answer the question that follow.
Which is the place under discussion?
What, according to this speaker, is the only true religion in the world? What human qualities have I been highlighted through 'his' speech?
Read the extract given below and answer the questions that follow:
"What's your name ?" he asked.
"Bmillnvaite," I replied, "Ricardo Bmithwaite.
'"I'm Pinkus and this is Mama Pinkus."
The introduction was effected with a filial devoti~ which was good to see.
"How d'you do, Mama Pinkus."
"I think I know someplace for you." He went the little noticeboard and removed a small car, on which was written a short advertisement of, room to let near-by.
(i) Why was Braithwaite looking for a new placet? stay? Why was he impressed by the place that was on rent?
(ii) What reception did Ile get wizen he reached the address that had been advertised? Whom did tit house belong to?
(iii) Why did Mrs. Pegg come lo see Braithwaite? Wh• reply did Braithwaite give to her?
(iv) What changes occurred in Pamela's persona/ii after the August holiday?
(v) What comment did Potter make wizen Braithwait? hurt himself? What did he mean by that comment How did Pamela react to Potter's remark?
Who used to give away everything he had, which even included his gold earrings?
Where did Mr Gessler live?
Which ways did Soapy try to reach the prison in vain?
What surprises do the meadows have to offer you?
Word in the box given below indicates a large number of… For example, ‘a herd of cows’ refers to many cows. Complete the following phrase with a suitable word from the box.
a _______________of wolves
Multiple Choice Question:
How do people become beautiful?
With your partner, complete the following sentence in your own word using the ideas in the poem.
One has to match __________________.
Multiple Choice Question:
How are words related to ideas?
Who says this to whom and why?
“I can’t pay you a penny for the wretched beast you sold me.”
What was Rasheed’s fault at the fair?
Encircle the correct article.
Would you like (a/an/the) apple or (a/an/the) banana?
The poem, 'A Considerable Speck’, captures ______.
