CLASS- 6 SUBJECT : SOCIAL SCIENCE GEOGRAPHY CHAPTER-7 OUR COUNTRY

 EVENTS CONVENT HIGH SCHOOL

10/02/2022      CLASS- 6  SESSION 2021-22
SUBJECT : SOCIAL SCIENCE GEOGRAPHY
CHAPTER-7
OUR COUNTRY   

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1. Tick the correct answer.
(a) The southernmost Himalayas are known as …………….
(i) Shiwaliks
(ii) Himadri
(iii) Himachal.

(b) Sahyadris is also known as …………
(i) Aravali
(ii) the Western Ghats
(iii) Himadri.

(c) The Palk Strait lies between the countries ……………
(i) Sri Lanka and Maldives
(ii) India and Sri Lanka
(iii) India and Maldives.

(d) The Indian islands in the Arabian sea are known as ……………….
(i) Andaman and Nicobar Islands
(ii) Lakshadweep Islands
(iii) the Maldives

(e) The oldest mountain range in India is the ……………
(i) Aravali hills
(ii) the Western Ghats
(iii) Himalayas

Answer:
(a)—(i), (b)—(ii), (c)—(ii), (d)—(ii), (e)—(i)

2. Fill in the blanks.

1. India has an area of about…………..
2. The Greater Himalayas are also known as……………
3. The largest state in India in terms of area is……………..
4. The river Narmada falls into the……………
5. The latitude that runs almost halfway through India is ……………….

Answer:

1. 3.28 million sq. km
2. Himadri
3. Rajasthan
4. Arabian
5. The Tropic of Cancer.

3.True/False State whether these sentences are true (T) or false (F).

1. Lakshadweep islands are coral islands.
2. The eastern coastal plains are much broader.
3. The Northern Indian plains lie to the south of the Himalayas.
4. The Bay of Bengal lies east to India.
5. Canada has five time zones.
6. High concentration of population is found in plateaus.

Answer:

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

4.Match the items in column A correctly with those given in column B.

Very Short Answer Type Questions

1. What is the north-south extent of India?
Answer:  The north-south extent from Kashmir to Kanyakumari is about 3,200 km.

2. What is the east-west extent of India?
Answer: The east-west extent from Arunachal Pradesh to Kuchchh is about 2,900 km.

3. How does the local time change?   [V. Imp.]
Answer: The local time changes by four minutes for every one degree of longitude,

4. What is the difference between the time of sunrise in Arunachal Pradesh and Gujarat?
Answer:  The difference between the time of sunrise in Arunachal Pradesh and Gujarat is two hours.

5. On what basis have the states been formed?
Answer:  The states have been formed on the basis of languages,

Short Answer Type Questions

1. Where are the world’s highest peaks located? [Imp.]
Answer:  The world’s highest peaks are located in the Great Himalayas or Himadri.

2. What is a peninsula?
Answer: A peninsula is a piece of land surrounded by water on all the three sides,

3. Define the term desert.
Answer:  A desert is a dry, hot and sandy stretch of land with very little vegetation,

4. Name the two important hill ranges that lie in the peninsula plateau
Answer:  The Vindhyas and the Satpuras.

5. What is called the mouth of the river?
Answer:  The point where rivers enter the sea is called the mouth of the river,

CLASS-6 SUBJECT ENGLISH CHAPTER-7 GETTING TO KNOW PLANTS

 EVENTS CONVENT HIGH SCHOOL

08/02/2022      CLASS- 6  SESSION 2021-22
SUBJECT : SCIENCE
CHAPTER-7
 GETTING TO KNOW PLANTS.

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 Question 1.Match the following items given in Column A with that in Column B:

Column A	Column B
(a) Creeper	Need support to stand up.
(b) Herb	Green and tender stem.
(c) Shrub	Hard but thin stem.
(d) Tree	Hard and thick stem.
(e)  Root	Absorption of mineral and water.
(h)  Stem	Transport food, water and mineral.
(g)  Leaf	Manufacture food.
(h)  Flower	Reproduction.

Question 2.Fill in the blanks with appropriate words:

1. Water Havels up the stem through …………. inside the stem.
2. Thick vein in the centre of leaf is called ………….. .
3. Design made by ……………. in a leaf is called venation.
4. Leaves Bicchu (Meltles) give you …………. on touching.
5. Leaves have ……………. shapes, sizes, edges, tips, etc.

Answers:-

1. narrow tubes
2. midrib
3. veins
4. rashes and itching
5. different

Question 3.State whether the statements given below are True or False:

1. Herbs are usually short and sometimes do not have branches.
2. In shrubs, branches arise from the base of the stem.
3. In trees, branches arise from the upper part of stem.
4. Stem absorbs water and minerals from the soil.
5. Roots hold the plant firmly in the soil.

Answers:

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

Question 4.Choose the correct option in the following questions:

(i) Which is an example of a shrub?
(a) Spinach
(b) Mango tree
(c) Tomato plant
(d) Lemon
Answer:
(d) Spinach and tomato are herbs while mango is a tree. So lemon is a shrub.

(ii) Which of the following type of plants has thick, hard and woody stem?
(a) Tree
(b) Shrub
(c) Herb
(d) All of these
Answer:
(a) Herb has a soft stem while shrubs have thin stem.

(iii) Which is not a part of a leaf?
(a) Petiole
(b) Lamina
(c) Veins
(d) Nodes
Answer:
(d) Nodes are found on stem.

(iv) parallel venation is not found in
(a) sugarcane
(b) peepal
(c) maize
(d) wheat
Answer:
(b) In peepal, reticulate venation.

(v) Which one of the following is a function of leaves?
(a) Photosynthesis
(b) Transpiration
(c) Both (a) and (b)
(d) Support fruits
Answer:
(c) Leaves perform both functions.

VERY SHORT ANSWER TYPE QUESTIONS

1. List few plants found around your house.
Ans:  Mango, neem, grass, chilli, palak and banyan tree.

2. Are all the plants same in size?
Ans: No, all plants are of different sizes.

3. What are the major parts of plants?
Ans: Stem, root, leaves and flowers.

4. How many kinds of plants are there?
Ans: There are three kinds of plants:
(i) Herbs
(ii) Shrubs
(iii) Trees

5. Name two plants that belong to herbs.
Ans:
(i) Tomato
(ii) Potato

SHORT ANSWER TYPE QUESTIONS
1. What are weeds?
Ans: The unwanted plants that grow in the fields with the main crops or in their surroundings are called weeds. Weeds are the plants which are not grown by the farmers. For example, grass.

2. Classify plants and give an example of each.
Ans: On the basis of various characteristics most of the plants can be classified into three categories:
(i) Herbs, e.g. tomato
(ii) Shrubs, e.g. lemon
(iii) Trees, e.g. mango

3. What are herbs? Give two examples.
Ans: The plants with green and tender stems are called herbs. They are usually short and may have no or less branches. For example, tomato, potato.

4. What are shrubs? Give two examples.
Ans: The plants which have a hard but not a very thick stem are called shrubs. Such plants have the stem branching out near the base. For example, lemon, rose plants.

DRAW A DIAGRAM OF 

CLASS-9 SUBJECT MATHS (FINALS-E) CHAPTER-7 (EXERCISE 7.4) TRIANGLES.

 EVENTS CONVENT HIGH SCHOOL

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

CHAPTER-7 (EXERCISE7.4)
TRIANGLES

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Question 1.Show that in a right angled triangle, the hypotenuse is the longest side.
Solution:
Let us consider ∆ABC such that ∠B = 90°
∴ ∠A + ∠B + ∠C = 180°
⇒ ∠A + 90°-+ ∠C = 180°
⇒ ∠A + ∠C = 90°
⇒∠A + ∠C = ∠B
∴ ∠B > ∠A and ∠B > ∠C

⇒ Side opposite to ∠B is longer than the side opposite to ∠A
i.e., AC > BC.
Similarly, AC > AB.
Therefore, we get AC is the longest side. But AC is the hypotenuse of the triangle. Thus, the hypotenuse is the longest side.

Question 2.In figure, sides AB and AC of ∆ABC are extended to points P and Q respectively. Also, ∠PBC < ∠QCB. Show that AC > AB.

Solution:
∠ABC + ∠PBC = 180° [Linear pair]
and ∠ACB + ∠QCB = 180° [Linear pair]
But ∠PBC < ∠QCB [Given] ⇒ 180° – ∠PBC > 180° – ∠QCB
⇒ ∠ABC > ∠ACB
The side opposite to ∠ABC > the side opposite to ∠ACB
⇒ AC > AB.

Question 3.In figure, ∠B <∠ A and ∠C <∠ D. Show that AD < BC.

Solution: Since ∠A > ∠B [Given]
∴ OB > OA …(1)
[Side opposite to greater angle is longer]
Similarly, OC > OD …(2)
Adding (1) and (2), we have
OB + OC > OA + OD
⇒ BC > AD

Question 4.AB and CD are respectively the smallest and longest sides of a quadrilateral ABCD (see figure). Show that ∠ A > ∠C and ∠B >∠D.

Solution:
Let us join AC.

Now, in ∆ABC, AB < BC [∵ AB is the smallest side of the quadrilateral ABCD] ⇒ BC > AB
⇒ ∠BAC > ∠BCA …(1)
[Angle opposite to longer side of A is greater]
Again, in ∆ACD, CD > AD
[ CD is the longest side of the quadrilateral ABCD]
⇒ ∠CAD > ∠ACD …(2)
[Angle opposite to longer side of ∆ is greater]
Adding (1) and (2), we get
∠BAC + ∠CAD > ∠BCA + ∠ACD
⇒ ∠A > ∠C
Similarly, by joining BD, we have ∠B > ∠D.

Question 5.In figure, PR > PQ and PS bisect ∠QPR. Prove that ∠PSR >∠PSQ.

Solution:
In ∆PQR, PS bisects ∠QPR [Given]
∴ ∠QPS = ∠RPS
and PR > PQ [Given]
⇒ ∠PQS > ∠PRS [Angle opposite to longer side of A is greater]
⇒ ∠PQS + ∠QPS > ∠PRS + ∠RPS …(1) [∵∠QPS = ∠RPS]
∵ Exterior ∠PSR = [∠PQS + ∠QPS]
and exterior ∠PSQ = [∠PRS + ∠RPS]
[An exterior angle is equal to the sum of interior opposite angles]
Now, from (1), we have
∠PSR = ∠PSQ.

CLASS-9 SUBJECT MATHS (FINALS-E) CHAPTER-7 EXERCISE 7.3 TRIANGLES.

 EVENTS CONVENT H.SCHOOL

25/01/2022      CLASS- 9   SESSION 2021-22
SUBJECT :MATHS

CHAPTER-7 (EXERCISE 7.3)

TRIANGLES

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Question 1.∆ABC and ∆DBC are two isosceles triangles on the same base BC and vertices A and D are on the same side of BC (see figure). If AD is extended to intersect BC at P, show that

(i) ∆ABD ≅ ∆ACD
(ii) ∆ABP ≅ ∆ACP
(iii) AP bisects ∠A as well as ∠D
(iv) AP is the perpendicular bisector of BC.
Solution:
(i) In ∆ABD and ∆ACD, we have
AB = AC [Given]
AD = DA [Common]
BD = CD [Given]
∴ ∆ABD ≅ ∆ACD [By SSS congruency]
∠BAD = ∠CAD [By C.P.C.T.] …(1)

(ii) In ∆ABP and ∆ACP, we have
AB = AC [Given]
∠BAP = ∠CAP [From (1)]
∴ AP = PA [Common]
∴ ∆ABP ≅ ∆ACP [By SAS congruency]

(iii) Since, ∆ABP ≅ ∆ACP
⇒ ∠BAP = ∠CAP [By C.P.C.T.]
∴ AP is the bisector of ∠A.
Again, in ∆BDP and ∆CDP,
we have BD = CD [Given]
DP = PD [Common]
BP = CP [ ∵ ∆ABP ≅ ∆ACP]
⇒ A BDP = ACDP [By SSS congruency]
∴ ∠BDP = ∠CDP [By C.P.C.T.]
⇒ DP (or AP) is the bisector of ∠BDC
∴ AP is the bisector of ∠A as well as ∠D.

(iv) As, ∆ABP ≅ ∆ACP
⇒ ∠APS = ∠APC, BP = CP [By C.P.C.T.]
But ∠APB + ∠APC = 180° [Linear Pair]
∴ ∠APB = ∠APC = 90°
⇒ AP ⊥ BC, also BP = CP
Hence, AP is the perpendicular bisector of BC.

Question 2. AD is an altitude of an isosceles triangle ABC in which AB = AC. Show that

(i) AD bisects BC
(ii) AD bisects ∠A
Solution:
(i) In right ∆ABD and ∆ACD, we have
AB =AC [Given]

∠ADB = ∠ADC [Each 90°]
AD = DA [Common]
∴ ∆ABD ≅ ∆ACD [By RHS congruency]
So, BD = CD [By C.P.C.T.]
⇒ D is the mid-point of BC or AD bisects BC.

(ii) Since, ∆ABD ≅ ∆ACD,
⇒ ∠BAD = ∠CAD [By C.P.C.T.]
So, AD bisects ∠A

Question 3.Two sides AB and BC and median AM of one triangle ABC are respectively equal to sides PQ and OR and median PN of ∆PQR (see figure). Show that
(i) ∆ABC ≅ ∆PQR
(ii) ∆ABM ≅ ∆PQN

Solution:
In ∆ABC, AM is the median.
∴BM = 12 BC ……(1)
In ∆PQR, PN is the median.
∴ QN = 12QR …(2)
And BC = QR [Given]
⇒ 12BC = 12QR
⇒ BM = QN …(3) [From (1) and (2)]

(i) In ∆ABM and ∆PQN, we have
AB = PQ , [Given]
AM = PN [Given]
BM = QN [From (3)]
∴ ∆ABM ≅ ∆PQN [By SSS congruency]

(ii) Since ∆ABM ≅ ∆PQN
⇒ ∠B = ∠Q …(4) [By C.P.C.T.]
Now, in ∆ABC and ∆PQR, we have
∠B = ∠Q [From (4)]
AB = PQ [Given]
BC = QR [Given]
∴ ∆ABC ≅ ∆PQR [By SAS congruency]

Question 4.BE and CF are two equal altitudes of a triangle ABC. Using RHS congruence rule, prove that the triangle ABC is isosceles.
Solution:
Since BE ⊥ AC [Given]

∴ BEC is a right triangle such that ∠BEC = 90°
Similarly, ∠CFB = 90°
Now, in right ∆BEC and ∆CFB, we have
BE = CF [Given]
BC = CB [Common hypotenuse]
∠BEC = ∠CFB [Each 90°]
∴ ∆BEC ≅ ∆CFB [By RHS congruency]
So, ∠BCE = ∠CBF [By C.P.C.T.]
or ∠BCA = ∠CBA
Now, in ∆ABC, ∠BCA = ∠CBA
⇒ AB = AC [Sides opposite to equal angles of a ∆ are equal]
∴ ABC is an isosceles triangle.

CLASS-7 SUBJECT SOCIAL SCIENCE HISTORY CHAPTER-7 TRIBES ,NOMADS AND SETTLED COMMUNITIES

 EVENTS CONVENT HIGH SCHOOL

10/01/2022      CLASS- 7   SESSION 2021-22
SUBJECT :SOCIAL SCIENCE HISTORY 

CHAPTER-7
TRIBES ,NOMADS AND SETTLED COMMUNITIES

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1. Match the following:
garh             –     khel
tanda           –    chaurasi
labourer      –   caravan
clan             –   Garha Katanga
Sib Singh    –  Ahom State
Durgawati   – paik
Answer:
garh – chaurasi
tanda – caravan
labourer – paik
clan – khel
Sib Singh – Ahom state
Durgawati – Garha Katanga

2. Fill in the blanks: 

1. The new castes emerging within vamas were called……………………
   
2. ……… were historical works written by the Ahoms.
   
3. The…….. mentions that Garha Katanga had 70,000 villages.
   
4. As tribal stales became bigger and stronger they gave land grants to………….. ..
   

Answer:

1. jatis
   
2. Buraryis
   
3. Akbar Nama
   
4. temples, Brahmanas.

3. State whether true or false:
(a) Tribal societies had rich oral traditions.
(b) There were no tribal communities in the north-western part of the subcontinent.
(c) The Chaurasi in Gond states contained several cities.
(d) The Bhils lived in the north-eastern part of the sub-continent.
Answer:    (a)—T, (b)—F, (c)—F, (d)—F.

4.VERY SHORT ANSWER TYPE QUESTIONS

1. How did the castes of entertainers earn their livelihood?
Answer: They earned their livelihood by performing in different towns and villages.

2. Which tribe was very influential in Punjab during the thirteenth and fourteenth centuries?              
Answer: The Khokhar tribe was very influential in Punjab during the thirteenth and fourteenth centuries

3. Name the tribe which was powerful in the north-west.
Answer: Balochis

4. Name any two tribes which lived in the extreme South
Answer: Vetars and Matravers

5. Who were specialised artisans?
Answer: Smiths, carpenters, and masons were specialised artisans

6. Who controlled Garh?
Answer: A Gond clan usually controlled the Garh

7. What made the Brahmanas more influential in the Gond Society? [V. Imp.]
Answer: The Gond raja began to grant land to the Brahmanas. This made them influential.

8. Who was Aman Das?
Answer: He was the Gond raja of Garha Katanga.

9. Who was Durgaivaii?
Answer: She was the daughter of Salbahan, the Chandel Rajput raja of Mahoba. She got married to Dalpat, the son of the Gond raja Aman Das.

10. When did the Mughal forces attack Garha Katanga?
Answer:  The Mughal forces attacked Garha Katangst in 1565.

5.Short Answer Type Questions

1. Mention some special features of tribal societies.       
Answer:  Some special features of tribal societies are :

• They did not follow the social rules and rituals which the Brahmanas prescribed.
• They were not divided into many unequal classes.
• Members of the society were united by kinship bonds.

2. How did the tribal people earn their livelihood? 
Answer:  The main occupation of the tribal people was agriculture. But there were also hunter-gatherers or herders. Most often they combined these activities to make full use of the natural resources of the area in which they lived. Some tribes were nomadic moving from one place to another.
A tribal group controlled land and pastures jointly and divided these amongst household as per its own rules

3. Write a short note on Bcuyaras’.
Answer:  The Banjaras were important trader nomads. They usually moved in caravan known as tanda. A tanda contained as many as 6 or 7 hundred persons. They carried their wives and children along with them. They owned their oxen. They bought grain where it was cheaply available and carried it to places where it was dearer. From there, they again reloaded their oxen with anything that could be profitably sold in other places. The Banjaras did not travel more than 6 or 7 miles a day. They preferred cool weather. After unloading their oxen, they freed them to graze

4. How did Sultan Alauddin Khalji and the Mughals use the Bcuyaras?
Answer:  Sultan Alauddin Khalji used the Banjaras to transport grain to the city markets. Under the Mughals the Banjaras carried grain on their bullocks from different areas and sold it in towns. They transported food grain for the Mughal army during military campaigns

5. Write a brief note on the administrative system of the Gond kingdom. [V. Imp.]
Answer:  The Gond Kingdom was divided into garhs. Each garh was controlled by a particular Gond clan. This was further divided into units of 84 villages called chaurasi. The chaurasi was subdivided into barhots which were made up of 12 villages each.

Class-8 Subject Hindi Chapter-7 क्या निराश हुआ जाए

  EVENTS CONVENT HIGH SCHOOL

08/01/2022      CLASS- 8   SESSION 2021-22
SUBJECT :HINDI 

CHAPTER-7 

क्या निराश हुआ जाए

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प्रश्न-अभ्यास

Question 1:लेखक ने स्वीकार किया है कि लोगों ने उन्हें भी धोखा दिया है फिर भी वह निराश नहीं हैं। आपके विचार से इस बात का क्या कारण हो सकता है?
Solution:
लेखक ने अपने व्यक्तिगत अनुभवों का वर्णन करते हुए कहा है कि उसने धोखा भी खाया है परंतु बहुत कम स्थलों पर विश्वासघात नाम की चीज मिलती है। पर उसका मानना है कि अगर वो इन धोखों को याद रखेगा तो उसके लिए विश्वास करना बेहद कष्टकारी होगा और ऐसी घटनाएँ भी बहुत कम नहीं हैं जब लोगों ने अकारण उनकी सहायता की है, निराश मन को ढाँढस दिया है और हिम्मत बँधाई है।
टिकट बाबू द्वारा बचे हुए पैसे लेखक को लौटाना, बस कंडक्टर द्वारा दूसरी बस व बच्चों के लिए दूध लाना आदि ऐसी घटनाएँ हैं। इसलिए उसे विश्वास है कि समाज में मानवता, प्रेम, आपसी सहयोग समाप्त नहीं हो सकते।

Question 2:दोषों का पर्दाफ़ाश करना कब बुरा रूप ले सकता है?
Solution:
दोषों का पर्दाफ़ाश करना तब बुरा रूप ले सकता है जब हम किसी के आचरण के गलत पक्ष को उद्घाटित करके उसमें रस लेते है या जब हमारे ऐसा करने से वे लोग उग्र रूप धारण कर किसी को हानि पहुँचाए।

Question 3:आजकल के बहुत से समाचार पत्र या समाचार चैनल ‘दोषों का पर्दाफ़ाश’ कर रहे हैं। इस प्रकार के समाचारों और कार्यक्रमों की सार्थकता पर तर्क सहित विचार लिखिए?
Solution:
इस प्रकार के पर्दा फाश से समाज में व्याप्त बुराईयों से, अपने आस-पास के वातावरण तथा लोगों से अवगत हो जाते हैं और इसके कारण समाज में जागरूकता भी आती है साथ ही समाज समय रहते ही सचेत और सावधान हो जाता हैं।

Question 4:
निम्नलिखित के संभावित परिणाम क्या-क्या हो सकते हैं? आपस में चर्चा कीजिए, जैसे – ”ईमानदारी को मूर्खता का पर्याय समझा जाने लगा है। ”परिणाम-भ्रष्टाचार बढ़ेगा।

1. ”सच्चाईकेवल भीरु और बेबस लोगों के हिस्से पड़ी है।” ………………..
2. ”झूठ और फरेब का रोज़गार करनेवाले फल-फूल रहे हैं।” ………………..
3. ”हर आदमी दोषी अधिक दिख रहा है, गुणी कम।” ………………..

Solution:

1. ”सच्चाईकेवल भीरु और बेबस लोगों के हिस्से पड़ी है। – तानाशाही बढ़ेगी
2. ”झूठ और फरेब का रोज़गार करनेवाले फल-फूल रहे हैं।” – भ्रष्टाचार बढ़ेगा
3. ”हर आदमी दोषी अधिक दिख रहा है, गुणी कम।” – अविश्वास बढ़ेगा

Question 5:लेखक ने लेख का शीर्षक ‘क्या निराश हुआ जाए’ क्यों रखा होगा? क्या आप इससे भी बेहतर शीर्षक सुझा सकते हैं?
Solution:
लेखक ने इस लेख का शीर्षक ‘क्या निराश हुआ जाए’ उचित रखा है। आजकल हम अराजकता की जो घटनाऍ अपने आसपास घटते देखते रहते हैं। जिससे हमारे मन में निराशा भर जाती है। लेकिन लेखक हमें उस समय समाज के मानवीय गुणों से भरे लोगों को और उनके कार्यों को याद करने कहा हैं जिससे हम निराश न हो।
इसका अन्य शीर्षक ‘हम निराशा से आशा’ भी रख सकते हैं।

Question 6:यदि ‘क्या निराश हुआ जाए’ के बाद कोई विराम चिहन  लगाने के लिए कहा जाए तो आप दिए गए चिह्नों में से कौन-सा चिहन लगाएँगे? अपने चुनाव का कारण भी बताइए – , । . । ? ; – , …. ।
Solution:
‘क्या निराश हुआ जाए’ के बाद मैं प्रश्न चिन्ह ‘क्या निराश हुआ जाए?’ लगाना उचित समझता हूँ। समाज में व्याप्त बुराइयों के बीच रहते हुए भी जीवन जीने के लिए सकारात्मक दृष्टि जरूरी है।

Question 7:”आदर्शों की बातें करना तो बहुत आसान है पर उन पर चलना बहुत कठिन है।” क्या आप इस बात से सहमत हैं? तर्क सहित उत्तर दीजिए।
Solution:
”आदर्शों की बातें करना तो बहुत आसान है पर उन पर चलना बहुत कठिन है।” – मैं इस कथन से सहमत हूँ क्योंकि व्यक्ति जब आदर्शो की राह पर चलता है तब उसे कई कठिनाइयों का सामना करना पड़ता है। असामाजिक तत्वों का अकेले सामना करना पड़ता है।