CLASS-6 SUBJECT MATHS, CHAPTER-9 DATA HANDLING EXERCISE-9.1

  EVENTS CONVENT HIGH SCHOOL

31/01/2022      CLASS- 6   SESSION 2021-22
SUBJECT : MATHS

CHAPTER-9
DATA HANDLING

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(Exercise 9.1)

Question 1.In a Mathematics test, the following marks were obtained by 40 students. Arrange these marks in a table using tally marks.

(a) Find how many students obtained marks equal to or more than 7.
(b) How many students obtained marks below 4?
Solution:
From the given data, we have the following table.

(a) Number of students who obtained marks equal to or more than 7 = 5 + 4 + 3 = 12
(b) Number of students who obtained marks below 4 = 2 + 3 + 3 = 8.

Question 2.Following is the choice of sweets of 30 students of Class VI.
Ladoo, Barfi, Ladoo, Jalebi, Ladoo, Rasgulla, Jalebi, Ladoo, Barfi, Rasgulla, Ladoo, Jalebi, Jalebi, Rasgulla, Ladoo, Rasgulla, Jalebi, Ladoo, Rasgulla, Ladoo, Ladoo, Barfi, Rasgulla, Rasgulla, Jalebi, Rasgulla, Ladoo, Rasgulla, Jalebi, Ladoo.
Arrange the names of sweets in a table using tally marks.
Which sweet is preferred by most of the students?
Solution:
(a) We have the following table:

(b) Ladoo is preferred by most of the students, i.e., 11 students.

Question 3.Catherine threw a dice 40 times and noted the number appearing each time as shown below:

Make a table and enter the data using tally marks. Find the number that appeared.
(а) The minimum number of times
(b) The maximum number of times
(c) Find those numbers that appear an equal number of times.
Solution:
We have the following table:

From the above table, we get
(a) The number 4 appeared 4 times which is the minimum.
(b) The number 5 appeared 11 times which is the maximum.
(c) The number 1 and 6 appear for the same number of times, i.e., 7.

Question 4.Following pictograph shows the number of tractors in five villages.

Observe the pictograph and answer the following questions.
(a) Which village has the minimum number of tractors?
(b) Which village has the maximum number of tractors?
(c) How many more tractors village C has as compared to village B?
(d) What is the total number of tractors in all. the five villages?
Solution:
From the given pictograph, we have
(а) Village D has the minimum number of tractors, i.e., 3.
(б) Village C has the maximum number of tractors, i.e., 8.
(c) Village C has 3 tractors more than that of the village B.
(d) Total number of tractors in all the villages is 28.

Question 5.The number of girl students in each class of a co-educational middle school is depicted by the pictograph:

Observe this pictograph and answer the following questions:
(a) Which class has the minimum number of girl students?
(b) Is the number of girls in Class VI less than the number of girls in Class V?
(c) How many girls are there in Class VII?
Solution:
(a) Class VIII has the minimum number of girl students
i,e. 112 x 4 = 6.
(b) No, number of girls in Class VI = 4 x 4 = 16 and number of girls in Class V = 212 x 4 = 10
So, number of girl students in Class VI is not less than that of in Class V.
(c) Number of girls in Class VII = 3 x 4 = 12

Question 6.The sale of electric bulbs on different days of a week is shown below:

Observe the pictograph and answer the following questions:
(a) How many bulbs were sold on Friday?
(b) On which day were the maximum number of bulbs sold?
(c) On which of the days same number of bulbs were sold?
(d) On which of the days minimum number of bulbs were sold?
(e) If one big carton can hold 9 bulbs. How many cartons were needed in the given week?
Solution:
(a) Number of bulbs sold on Friday = 7 x 2 = 14
(b) On Sunday, the number of bulbs sold = 9 x 2 = 18 which is maximum in number.
(c) On Wednesday and Saturday, the same number of bulbs were sold, i.e., 4 x 2 = 8
(d) The minimum number of bulbs were sold on Wednesday and Saturday, i.e., 4 x 2 = 8
(e) Total number of bulbs sold in a week = 43
Number of cartons needed 5
= (43 x 2) ÷ 9 = 86 ÷ 9 = 959 = 10 cartons.

CLASS-8 SUBJECT SOCIAL SCIENCE CHAPTER-6 HUMAN RESOURCES

 EVENTS CONVENT HIGH SCHOOL

28/01/2022      CLASS- 8   SESSION 2021-22
SUBJECT : SOCIAL SCIENCE(Geography)

CHAPTER-6
HUMAN RESOURCES

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Question 1.Choose the correct option.
(i) The most populated continent is
(a) Asia
(b) Africa
(c) Europe
(d) South America

(ii) The least number of people live in this continent
(a) North America
(b) Europe
(c) Oceania
(d) Antarctica

(iii) According to population, what is India’s rank in the world?
(a) 7th
(b) 2nd
(c) 5th
(d) 1st

(iv) Which of these countries has a population below 100 million?
(a) Japan
(b) Peru
(c) USA
(d) India

(v) What is the average population density of the world? (in persons per sq km)
(a) 300
(b) 100
(c) 45
(d) 10

(vi) In which country is the city of Osaka located?
(a) UK
(b) South Korea
(c) Japan
(d) None of these

(vii) Which of these countries is notable for the number of people who emigrate outside from there?
(a) Sudan
(b) Australia
(c) New Zealand
(d) None of these

(viii) Which of these characteristics of a population pyramid indicates the lowest levels of literacy and development?
(a) broad base, narrow top
(b) broad base, steady slope
(c) narrow base, narrow top
(d) broad base, broad top
Answer:
(i) (a), (ii) (d), (iii) (b), (iv) (b), (v) (c), (vi) (c), (vii) (a), (viii) (a).

Question 2.
Fill in the blank spaces given to complete each sentence.

1. ……….. is considered to be the ultimate resource.
2. More than 90% of the world’s population resides on just …………… per cent of the total land surface.
3. The top ten countries in population cover about …………. per cent of the total world population.
4. ……….. is the most populated country in North America.
5. The world’s population reached a billion in the year ………….
6. Birth rate and death rate are usually expressed in terms of per ………… people.
7. The difference between the ……… and the ………… is called natural growth rate of population.
8. The age group 0-15 comes under the economically ………….. group.

Answer:

1. Human resource
2. ten
3. sixty
4. USA
5. 1820
6. 1000
7. birth rate, death rate
8. dependent

Question 3.
State whether each of the following statements is true (T) or false (F).

1. Many more people live to the south of the Equator than the north.
2. Each of the top ten populated countries has a population of over 100 million.
3. South-Central Asia has the highest density of population.
4. The population of the world doubled between 1820 and 1999.
5. In the United Kingdom, the birth rate as well as the death rate is low.
6. Japan and Bangladesh are very densely populated. We can conclude that both are economically underdeveloped.

Answer.

1. False
2. True
3. True
4. False
5. True
6. False

Question 4.
Match the items given in Column I correctly with those given in Column II.

Answer:
(i) (f), (ii) (a), (iii) (d), (iv) (c), (v) (b), (vi) (e).

Very Short Answer Type Questions

Question 1.
In what respects do different human beings differ?
Answer:
Human beings differ from each other in age, sex, education, ethnicity, culture, physical and mental strength, etc.

Question 2.
With the help of figures, describe how the population varies across continents.
Answer:
Around 61% of the world’s population lives in Asia, 12% in Europe, 13% in Africa, 8% in Central/South America, 5% in North America, and 1% in Oceania.

Question 3.
If 600 people live in your colony, and the area of your colony is 2 sq km, what is the population density of your colony?
Answer:
If 600 people live in a 2 sq km area, on average, 300 people live in 1 sq km. So the density of the population is 300 persons per sq km.

Question 4.
Compare the population density of the world with that of India.
Answer:
The population density of the world is around 45 persons per sq km, whereas that of India is over 320 persons per sq km.

Question 5.
How does climate affect the population distribution of an area?
Answer:
People prefer to live in regions with a moderate climate, and not places of the extreme cold and hot climate. So moderate climate regions are densely populated.

Short Answer Type Questions

Question 1.Answer the following questions.
(i) Why are people considered a resource?
(ii) What are the causes for the uneven distribution of population in the world?
(iii) The world population has grown very rapidly. Why?

Answer.
(i) Human beings are the most important resource of a nation. They are significant because had they not utilised their brains, the other resources of nature would not have found any utility. In other words, human resource is the ultimate resource.

(ii) Population density depends on the climate conditions and topography of the place, like few people live in high latitude areas, tropical deserts, mountainous ‘terrains, and forest areas,whereas a large number of people reside in plains. Fertility of soils, availability of fresh water, minerals are other major geographical factors behind this. Some social factors that boost the density of population in a region are better housing, education and health facilities. Places with cultural or historical significance are usually populated. Employment opportunities are another attraction for large chunks of population.

(iii) Because of the better food supplies, increase in medical facilities, reduced death rate, birth rate almost remaining the same.

• The difference between birth rate and death rate is called natural growth rate. This natural growth is high due to better medical and food facilities leading to growth in population.
• Many people move from one country to another due to various reasons. This also leads to increase in population of the countries having his immigration.

CLASS-7 SUBJECT SOCIAL SCIENCE CHAPTER-8 DEVOTIONAL PATHS TO THE DIVINE

  EVENTS CONVENT HIGH SCHOOL

28/01/2022      CLASS- 7   SESSION 2021-22
SUBJECT : SOCIAL SCIENCE

CHAPTER-8
DEVOTIONAL PATHS TO THE DIVINE

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1. Match the following:
The Buddha                      –   namghar
Shankaradeva                  –   worship of Vishnu
Nizamuddin Auliya        –   questioned social differences  
Nayanars                          –  Sufi saint
Alvars                               –  worship of Shiva
Answer:  The Buddha           –  questioned social differences
Shankaradeva                –  namghar
Nizamuddin Auliya      –  Sufi saint
Nayanars                        –  worship of Shiva
Alvars                             –   worship of Vishnu

2. Fill in the blanks:
(a) Shankara was an advocate of…………..
(b) Ramanuja was influenced by the ………….
(c)  ……………., ………..  and ………. were advocates of Virashaivism.
(d) ….. was an important centre of the Bhakti tradition in Maharashtra.
Answer:
(a) Advaita
(b) Alvars
(c) Basavanna, Allama Prabhu, Akkamahadevi
(d) Pandharpur

Very Short Answer Type Questions

1. What did the Puranic stories consist of? [V. Imp.]
Answer:  The Puranic stories consisted of local myths and legends

2. Who were the Pulaiyar and the Panars?
Answer:  They were considered untouchables

3. How many Alvars were there?
Answer:  There were 12 Alvars.

4. Name the two sets of compilations of Nayanar’s songs.
Answer:  Tevaram and Tiruvacakam.

5 Name the set of compilation of Alvars’ songs.
Answer:  Divya Prabandham.

Short Answer Type Questions

1. What was known as dharmsal?
Answer:  Baba Guru Nanak created a sacred place which was known as dharmsal. It is now known as Gurudwara.

2. To whom did Baba Guru Nanak appoint as his successor?
Answer:  Guru Nanak appointed Guru Angad, one of his followers, as his successor.

3. What is Guru Granth Sahib?
Answer:  Guru Granth Sahib is the holy scripture of the Sikhs.

4. Why did the Mughal emperor Jahangir order the execution of Guru Aijan in 1606?
Answer:  The Mughal emperor Jahangir looked upon the Sikh community as a potential threat and therefore he ordered the execution of Guru Aijan.

5. What did the terms ‘nam’, ‘dan’ and ‘isnan’ mean?    [V. Imp.]
Answer:  The terms nam, dan and isnan meant right worship, welfare of others and purity of conduct.

6. Who compiled the compositions of Baba Guru Nanak?
Answer:  Guru Angad compiled the compositions of Baba Guru Nanak.