Advertisements
Advertisements
Question
Read the comic strip and answer the following question.
Do you think that all the information online can be used without any permission?
Advertisements
Solution
No, there is some information that is owned by someone. One has to take necessary permissions in order to use their content.
APPEARS IN
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)
Discuss the following statement in groups of two pairs, each pair in a group taking opposite points of view.
The methods of inquiry of history, science, and philosophy are similar.
Visit a library:
This story is a fable. Find two more fables. Share them with your friends.
How early did the preparations for the Science Fair begin?
What challenges does Alice face and how does she overcome them?
How did the third daughter use the grain?
What does the man have?
Imagine your world and write its qualities in the cloud.
The kingdom was situated in the foothills of______.
The passage given below is on Kabbadi. Read the passage and complete the activities that follow.
Kabbadi (கபடி - in Tamil) is a contact team sport that originated in Tamil Nadu, India. It is the national sport of Bangladesh. It is also popular in South Asia and is the state game of the Indian states of Tamil Nadu, Kerala, Andhra Pradesh, Bihar, Haryana, Karnataka, Maharashtra, Punjab, and Telangana.
Kabbadi is played between two teams of seven players: the objective of the game is for a single player on offence referred to as a 'raider', to run in to the opposing teams half of a court, tag out as many of their defenders as possible, and return to their own half of the court–all without being tackled by the defenders. Points are scored for each player tagged by the raider, while the opposing team earns a point for stopping the raider. Players are taken out of the game if they are tagged or tackled, but can be 'revived' for each point scored by their team from a tag or tackle. The raider should hold his breath and utter the words like 'kabbadi kabbadi, hututu hututu, chadu kudu' etc. while the opponents try to catch him. If he stops uttering these words, he is considered out.
The game is known by its regional names in different parts of the subcontinent, such as Kabbadi or Chedugudu in Andhra Pradesh, Kabbadi in Kerala and Telangana, Hadudu in Bangladesh, Bhavatik in Maldives, Kauddi or Kabbadi in the Punjab Region, Hu-Tu-Tu in Western India and Hu-Do-Do in Eastern India and Chadakudu in South India. The highest governing body of Kabbadi is the International Kabbadi Federation.
Given below is the visual presentation of the first paragraph.
i) Represent the other paragraphs in a visual form of your choice(flow chart, mind-map, pie-chart, etc.).
ii) Choose the correct option.
1. A contact sport usually involves a ______contact between players.
- violent
- gentle
- physical
2. Kabbadi is a game played between ______.
- seven teams of two players
- two teams of seven players
- four teams of seven players
3. A single ______.
- player on offence is referred to as a raider
- offence is referred to as a raider
- raider is an offence by the player
iii) Answer the following.
- How does a raider score points for his team?
- When does a raider concede a point to the opponent team?
- Can a player be revived when he/she is out of the game? Explain your answer.
- Kabbadi is called by different names in different parts of India. Do you know how Pallankuzhi is called in Karnataka, Andhra Pradesh and Kerala?
