Friday, January 28, 2022

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.
NCERT Solutions for Class 8 Social Science Geography Chapter 6 Human Resources Exercise Questions Q4
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.

CLASS-9 SUBJECT SOCIAL SCIENCE CHAPTER-5 NATURAL VEGITATION AND WILDLIFE

 EVENTS CONVENT HIGH SCHOOL

27/01/2022      CLASS- 9   SESSION 2021-22
SUBJECT : SOCIAL SCIENCE

CHAPTER-5
NATURAL VEGITATION AND WILDLIFE

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Very Short Answer Type Questions

Question 1.The number of flowering plants in India is about _______ .
Answer:
15,000

Question 2.Name two non-flowering plants.
Answer:
Algae, fungi and ferns.

Question 3.The sandy soils of desert support _______ .
Answer:
Cactus and thorny bushes.

Question 4.Sundari trees are found in _______ .
Answer:
Tidal Forests

Question 5.A very large ecosystem on land having distinct type of vegetation and animal life is called _______ .
Answer:
Biome

Question 6.At higher altitudes, mosses and lichens form part of _______ .
Answer:
Tundra vegetation

Question 7.The dry deciduous forests are found in areas having rainfall between _______ .
Answer:
100 cm and 70 cm

Question 8.The mangrove tidal forests are found in the areas of coasts influenced by sea _______ .
Answer:
Tides

Question 9.Royal Bengal Tiger is found in _______ .
Answer:
Mangrove forests

Question 10.Wildlife Protection Act was implemented in India in _______ .
Answer:
1972

Short Answer Type Questions

Question 1.How do human beings influence the ecology of a region?
Answer:
Human beings influence the ecology of a region in the following ways :

  • They utilise the vegetation and wildlife of a particular region.
  • The greed of human beings leads to overutilisation of these resources.
  • They cut trees and kill the animals, thereby, creating an ecological imbalance.

Question 2.What are endangered species? Give examples.
Answer:

  • The plants and animals that are at the verge of extinction are called endangered species.
  • Rhinoceroes, Great Indians bustards and tigers are some of the examples of endangered species of animals.

Question 3.Write a short note on the biodiversity in India.
Or
‘India is one of the 12 mega biodiversity countries of the world’. Explain

Answer:Our country India is one of the 12 mega bio-diversity countries of the worid. With about 47,000 plant species, India occupies tenth place in the world and fourth in Asia in plant diversity.

  • There are about 15,000 flowering plants in India, which account for 6 per cent in the world’s total number of flowering plants.
  • The country has many non-flowering plants, such as ferns,’algae and fungi. India also has 90,000 species of animals, as well as, a rich variety of fish in its fresh and marine waters.

Question 4.Discuss how flora and fauna are interrelated to each other.
Answer:
The interrelation between flora and fauna is as under :

  • Flora refers to the autotrophs, i.e., producer of their own food themselves, while fauna refers to the heterotrophs, i.e., getting their food directly or indirectly from autotrophs.
  • Food webs and food chains make ex-facie the interrelation between the flora and fauna.
  • Flora provides food to all living organisms while fauna provides nutrients to the soil from its waste and decay.

Long Answer Type Questions

Question 1 Distinguish between the moist and dry deciduous forests.
Answer:

Moist Deciduous ForestsDry Deciduous Forests
1. These are found in areas receiving annual rainfall between 100 cm and 200 cm.1. These forests are found in areas receiving annual rainfall between 70 cm and 100 cm.
2. Trees found in these forests are teak, sal, shisham, sandalwood, khair and bamboos.2. There are open stretches in which, teak, sal, peepal, neem, etc. grow.
3. These forests are generally found in Jharkhand, West Odisha, Chhattisgarh and on the eastern slopes of the Western Ghats.3. These forests are found in the rainer parts of the peninsular plateau and the plains of U.R, and Bihar.

Question 2 Write a short note on thorny forests and scrubs.
Answer:
The thorny forest and scrubs are found in regions with less than 70 cm of rainfall, the natural vegetation consists of thorny trees and bushes. This type of vegetation is found in the north-western part of the country, including semi-arid areas of Gujarat, Rajasthan, Madhya Pradesh, Chhattisgarh, Uttar Pradesh and Haryana. Acacias, palms, euphorbias and cacti are the main plant species. Trees are scattered and have long roots penetrating deep into the soil to get moisture. The stems are succulent to conserve water. Leaves are mostly thick and small to minimise evaporation. These forests give way to thorn forests and scrubs in arid areas. In these forests, the common animals are rats, mice, rabbits, fox, wolf, tiger, lion, wild ass, horses and camels.

Question .3 Write three measures to conserve ecosystem.
Answer:
The measures to conserve ecosystem are :

  • Deforestation has disturbed our ecosystem. It must be stopped forthwith.
  • Indiscriminate killing of wild animals has distorted our ecosystem. Hence, killing of
    animals should be stopped immediately.
  • Ecosystem can be conserved by developing more wildlife sanctuaries, national parks and biosphere reserves.

Question. 4Why is conservation of wildlife very essential? Explain.
Answer:
The government has taken many special efforts to preserve endangered species of birds and animals. Periodic census is undertaken to find out the latest position and trends in this regard. The Project Tiger has been a great success. We have many tiger reserves in various parts of the country. Likewise, the Project Rhino is being implemented in Assam. The Indian Bustard of Rajasthan and Malwa Plateau are yet another endangered species. Even the number of lions had been dwindling for long. Conservation of wildlife is essential in order to protect the endangered species of birds and animals and also to maintain the ecological balance. The Government of India has so far set-up eighteen biosphere reserves.