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Question
What two basic rules were followed in the Science Fair?
Solution
The two basic rules followed at the Science Fair were:
- Everything should be handled by students
- The entertainment booths and refreshment stalls had to have a scientific basis.
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)
Read the Preamble of the Constitution of India given in your textbook. Pick out a word that refers to the following.
Brotherhood
Find from the Internet and write down.
In which century did William Shakespeare write his famous plays?
Write other meaningful words that begin/end with footprint.
Find out what 'Braille' is.
The hatchlings use a tiny egg-tooth to come out of the eggs.
What did the first daughter do?
The bird-catcher had a pigeon in his _______.
Why should we close the tap after using it?
Now read the following article on the emerging career options in the modern era and answer the questions that follow.
The students at the higher secondary level in schools start thinking of suitable courses to take up at the university level based on their aptitude, ability, and interests. While considering the higher education options, they should also plan the career path they wish to take. In today’s complex job scenario, there is a mismatch between demand and supply. On one hand, we have qualified professionals desperately trying to find a job, while on the other hand, there are many professions that need suitable talented employees. But such skilled employees are unavailable. Therefore, the need of the hour is that students have an understanding of the emerging career options. and globalisation has widened the scope of career options in the twenty–first century. Let us consider some popular careers.
Fashion Designing
The current cosmopolitan and fashion–conscious wave that has taken over our country has opened up a huge arena for careers in fashion. These careers encompass designing clothes, costumes, jewellery, footwear, wardrobe, cosmetics, accessories and the like.
Culinary Arts
With food and cookery shows being a major trend across the world, culinary arts, a sub-domain of the hospitality sector, has now become the most sought-after career.
Paramedical sciences
In recent times, there has been a great demand in the health care industry. Paramedical professionals who support medical practitioners in areas such as optometry, pathology, nursing, physiotherapy, and dentistry are much sought after.
Media, Journalism and Advertising
In this information era, print and entertainment media have become a force to reckon with. This arena has become a huge career playground because youngsters are attracted to it as the exposure and reach are greater through such mass media. We notice that radio and TV channels, internet companies, and advertising agencies are increasingly recruiting qualified professionals.
Hotel Management
The hotel industry is the fastest-growing industry in India. The number of international travellers (both for business and leisure) is increasing. The hospitality and service industry offers career options such as house keeping, front-desk executives, tourism management, etc.
Sports Management
With multinational companies supporting sports, careers in sports offer enormous scope. One need not be a player or an athlete to shine in a sports career because the field of sports offers various career options such as technical trainers, commentators, sports journalists, dieticians, referees, etc. Conducting sports events successfully, organizing the event laudably, preparing the ground for the event are all part of sports management.
- When do students start thinking about their career path?
- How can students build a strong career?
- What are the integral aspects of a successful career?
- What is meant by ‘culinary art’?
- Why is media a popular career option?
- Name some paramedical courses mentioned in the passage.
- Why is the hotel industry seen as the fastest growing in India?
- Does one have to be a player to opt for a career in the field of sports? Answer giving reasons.
- Pick one word from the passage which is the opposite of ‘modern’.
- Which word in the passage means ‘composed of people from many parts of the country’?
