Advertisements
Advertisements
प्रश्न
What should we do to ensure Safe Surfing?
Advertisements
उत्तर
- Use a secure browser.
- Do not surf unsecure websites. A website with URL starting with https:// is a secure website. If the website URL starts only as http://, it is unsecure.
- Avoid clicking on links from unknown mails/pop-ups.
- Do not enter passwords when connected to a public network (WiFi in Railway stations or Airports)
- Always use a computer in which updated Anti Virus is installed.
APPEARS IN
संबंधित प्रश्न
A1. True or False
State whether the following statements are true or false:
(i) A new research suggests that eating healthy food and getting proper sleep helps children to succeed in school.
(ii) Kids in the age group of 6-12 years should get an average sleep of little less than 7 hours.
(iii) Kids should start their day with yogurt, fruits and veggies.
(iv) Children should have consistent sleeping habit.
A new research suggests that eating healthy food and getting proper sleep can help children succeed in school. According to research, when kids go to school without eating breakfast, their cognitive function can be affected.
According to study, kids should start the day with fruits, proteins and whole grains and they should avoid sugary cereals because they cause a sugar high. If the kids do need to eat something prior to dinner, parents should offer healthy choices like yogurt, fruits and veggies or baked chips. Children have also been advised to drink water instead of soda as-it lacks nutritional value. Moreover, research suggests that children need a good night's sleep for theiroverall school performance. It is said that. lack of sleep can lead to problems with attention and memory in the classroom, affect impulse control and mood regulation lead to.
anxiety and even depression.
While kids aged 6-12 years should get nine hours sleep nightly, adolescents from the age of 13 to 18 years should get an average sleep of little more than seven hours per night. However, the research suggests that catching up on lost sleep on the weekend can make matters worse and recommended a consistent bedtime seven days a week.
A2. Find
Fill in the blocks with the following given in the passage:
(i) Two things to be avoided by children:
(ii) Lack of sleep due to mood regulation leads to:
A3. Select
Select the correct word from the brackets and complete the statements given below:
(anxiety, consistent, impulse, attention)
(i) Last minutes study causes......... to the students.
(ii) Stress affects the.............. for a quick action.
(iii) Saina has shown ........... improvement in her performance.
(iv) Students should pay ..............in class.
A4. Language study
(i) Pick out anyone sentence from the passage where a modal auxiliary indicating advice is used.
(ii) Pick out the correct conjunctions from the given sentences:
(a) Kids should avoid sugary cereals because they cause a sugar high.
(b) It is said that lack of sleep can lead to problems.
A5. Personal response
We should eat healthy food. Explain..
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)
How did Helen benefit when Dr. Graham Bell accompanied her to the World Fair?
Read the following extract of the poem and complete the activities given below :
B1 State which of the following statements are
True or False :
(i) The elderly are nearest to our own exalted personality.
(ii) The elderly are those persons whose growth is stunted.
(iii) We should know our elderly people well, in order to receive guidance.
(iv) The elderly hold on to the frivolous aspects of life.
Elderly people should be around us. Justify.
(b) abb
(c) abba
While tribal communities may not seem to possess the scientific temper,there are many ideas from tribal conventions that could enrich modern societies.
State the central issue in the poem.
What do you understand of the three voices in response to the question 'What does a novel do' ?
Say why the speaker of the poem wishes to be a -
watchman
Using a dictionary/internet note down the main difference between self-reliant and self-assured.
Make a list of archaic words from the poem and give their modern equivalents.
Read the lesson and name the following.
The Father of modern neurosurgery ______
Say WHY. . . . . .
Mother agreed to send Ramanujan to England.
Describe the following with the help of the story.
Thiruvalluvar
If you saw someone abusing an animal, what would you do? Write about it in 5 lines.
What do the following events/actions tell us about the characters? Discuss.
Sir Ector asked Sir Kay to show him whether he could draw the sword out of the stone.
Find the meaning of the following word.
thee
Present Mr. Wilson’s story as it would be shown in a comic strip. Write what picture you will show in each frame along with the dialogues. Write the dialogue with the help of the story. Examples:
 |
 |
 |
List the rhyming words in the (On the water) poem.
Find a word that has a similar meaning.
Whole
How did the children react when they met each other at the ruins?
Read the poem and fill in the blanks with the correct option.
It is better far to rule by ______, than ______.
- soft
- vain
- fear
- joy
- love
- heard
- toiled
- mild
- good
- sand
- life
- harsh
Read the line and answer the question.
And all I ask is a windy day with the white clouds flying
Why does the poet ask for a windy day?
Rearrange the following jumbled sentences in the correct order.
- Payal’s house was a home for abandoned animals.
- It was a small ball of brown and grey.
- She found an owlet in one corner.
- Payal’s mother picked her up gently.
- Payal’s mother opened the carton.
- One day they got a carton.
The land was wet and green.
Match the actions with the picture.
| mixes for community food service |  |
| sows the grain |  |
| feeds the birds |  |
Why did Jana chase the squirrel?
Why did Jana’s friends stop her from going near the tree?
Whose word are these? Name the character.
“We do not have money to buy anything.”
Write the word with same meaning.
Sink
What strange things did Alice see?
