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Question
Activity
It’s fun to help out in the kitchen. You can even practice reading aloud when reading the recipe. And you can learn a little math by figuring out how to measure. Here are a few fun items to make that are “Alice” themed.
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Solution
Activity to be done by the Students.
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RELATED QUESTIONS
Read the passage given below and answer the questions that follow:
1. Air pollution is an issue which concerns us all alike. One can willingly choose or reject a food, a drink or a life comfort, but unfortunately there is little choice for the air we breathe. All, what is there in the air is inhaled by one and all living in those surroundings.
2. Air pollutant is defined as a substance which is present while normally it is not there or present in an amount exceeding the normal concentrations. It could either be gaseous or a particulate matter. The important and harmful polluting gases are carbon monoxide, carbon dioxide, ozone and oxides of sulphur and nitrogen. The common particulate pollutants are the dusts of various inorganic or organic origins. Although we often talk of the outdoor air pollutions caused by industrial and vehicular exhausts, the indoor pollution may prove to be as or a more important cause of health problems.
3. Recognition of air pollution is relatively recent. It is not uncommon to experience a feeling of 'suffocation' in a closed environment. It is often ascribed to the lack of oxygen. Fortunately, however, the composition of air is remarkably constant all over the world. There is about 79 per cent nitrogen and 21 per cent oxygen in the air − the other gases forming a very small fraction. It is true that carbon dioxide exhaled out of lungs may accumulate in a closed and over-crowded place. But such an increase is usually small and temporary unless the room is really air-tight. Exposure to poisonous gases such as carbon monoxide may occur in a closed room, heated by burning coal inside. This may also prove to be fatal.
4. What is more common in a poorly ventilated home is a vague constellation of symptoms described as the sick-building syndrome. It is characterized by a general feeling of malaise, head-ache, dizziness and irritation of mucous membranes. It may also be accompanied by nausea, itching, aches, pains and depression. Sick building syndrome is getting commoner in big cities with the small houses, which are generally over-furnished. Some of the important pollutants whose indoor concentrations exceed those of the outdoors include gases such as carbon monoxide, carbon dioxide, oxides of nitrogen and organic substances like spores, formaldehydes, hydrocarbon aerosols and allergens. The sources are attributed to a variety of construction materials, insulations, furnishings, adhesives, cosmetics, house dusts, fungi and other indoor products.
5. By-products of fuel combustion are important in houses with indoor kitchens. It is not only the brining of dried dung and fuelwood which is responsible, but also kerosene and liquid petroleum gas. Oxides of both nitrogen and sulphur are released from their combustion.
6. Smoking of tobacco in the closed environment is an important source of indoor pollution. It may not be high quantitatively, but significantly hazardous for health. It is because of the fact that there are over 3000 chemical constituents in tobacco smoke, which have been identified. These are harmful for human health.
7. Micro-organisms and allergens are of special significance in the causation and spread of diseases. Most of the infective illnesses may involve more persons of a family living in common indoor environment. These include viral and bacterial diseases like tuberculosis.
8. Besides infections, allergic and hypersensitivity disorders are spreading fast. Although asthma is the most common form of respiratory allergic disorders, pneumonias are not uncommon, but more persistent and serious. These are attributed to exposures to allergens from various fungi, molds, hay and other organic materials. Indoor air ventilation systems, coolers, air-conditioners, dampness, decay, pet animals, production or handling of the causative items are responsible for these hypersensitivity − diseases.
9. Obviously, the spectrum of pollution is very wide and our options are limited. Indoor pollution may be handled relatively easily by an individual. Moreover, the good work must start from one’s own house
(Extracted from the Tribune)
(a) (i) What is an air pollutant? (1)
(ii) In what forms are the air pollutants present? (2)
(iii) Why do we feel suffocated in a closed environment? (1)
(iv) What is sick building syndrome? How is it increasing? (2)
(v) How is indoor smoking very hazardous? (1)
(vi) How can one overcome the dangers of indoor air pollution? (2)
(b) Find the words from the above passage which mean the same as the following: (3)
(i) giddiness (para 4)
(ii) constant (para 8)
(iii) humidity (para 8)
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Find evidence from the lesson and write in your own words.
In Israel, the media have a positive outlook and self-respect.
What common qualities did the three brothers have?
Find two examples of the following from the lesson.
A Question
Read the story again and write how these character reacted in these situation:
You’re both quite mistaken.
Dr. Krishnan ........…………………….
Mrs. Krishnan……....…………………
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Who first brought these vegetables to India?
The official and his wife liked______.
Read the passage and write the summary of it. Suggest a suitable title to your summary.
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King Krishnadeva Raya would perform heavy exercises every morning. He regularly applied oil on his body and thereafter worked out till all the oil came out with the sweat. This was followed by a long ride on his horse. Once the king started leading a sedentary lifestyle, and he stopped exercising. He no longer went horse-riding either. The king overate and as a result grew fat and heavy. The king‟s temperament also underwent a sea change. Noticing this, the royal physicians cautioned the king against the ill effects of overeating and explained to him the risks posed by obesity. They advised the king to regulate his diet, exercise, and take care of his health. The repeated advice he got from the physicians to eat less made him so angry that one day he announced a reward for anyone who could find him an easy cure. But there was one condition: those who failed would have their heads off. None dared to advise the king in this regard. The situation became precarious and as usual Tenali Raman was approached by the courtiers for a remedy. Tenali heard the problem and assured the courtiers of a viable solution. The next day, an astrologer predicted that the king had only a month left to live. When the king came to know of this, he was furious. The astrologer was ordered by the king to be imprisoned for a month so that his prediction could be put to test and so the hapless forecaster was sent to prison. |
