Tuesday, March 30, 2021

1. RESOURCES

 संसाधन 

CLASS 8 SOCIAL SCIENCE

NCERT TEXTBOOK EXERCISE

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1. Answer the following questions.

Question 1(1). Why are resources distributed unequally over the earth?

Answer: The distribution of natural resources depends on various factors like terrain, climate, and altitude. These factors differ over the earth and so the distribution of resources.

Question 1(2). What is resource conservation?

Answer: Using resources carefully and giving them time to get renewed is resource conservation.

Question 1(3). Why are human resources important?

Answer: Human resources are important because they make the best use of nature to create more resources with the help of their knowledge, skill, and technology.

Question 1(4). What is sustainable development?

Answer: Sustainable development is the careful utilization of resources that help to meet the requirements of the present and also takes care of the development for future generations.

Question 2. Tick the correct answer.

1. Which one of the following does NOT make the substance a resource?

(a) utility

(b) value

(c) quantity.

2. Which one of the following is a human-made resource?

(a) medicines to treat cancer

(b) spring water

(c) tropical forests

3. Complete the statement. Biotic resources are

(a) derived from living things

(b) made by human beings

(c) derived from non-living things

Question 3. Differentiate between the following.

(a) Potential and actual resources

Answer: 

Potential Resources

Actual Resources

1. Potential resources are those resources for which the entire quantity is not known.


2. They are not being used at present due to the non-availability of technology or finance to develop them.


3. Example: Uranium in Ladakh, strong winds in Rajasthan.


1. Actual resources are those resources for which quantity is known.


2. They are being used at present with the existing technology.


3. Examples: Rich coal deposits in Ruhr valley of Germany, Jharkhand, Odisha; Petroleum in west Asia; Black soil in Deccan Trap of Maharashtra.

(b) Ubiquitous and localized resources.

Answer: 

Ubiquitous Resources

  Localized Resources

1. Ubiquitous resources are those resources which are found everywhere.

2. Examples: Land, water, air.

1. Resources found only in certain places are called localized resources.

2. Examples: Iron ore, copper, bauxite, gold, etc.

Question 4. Activity

“Rahiman paani raakhiye,

Bin paani sab soon.

Paani gaye na ubere Moti,

manus, choon…”

[Says Rahim, keep water, as without water there is nothing. Without water pearl, swan, and the dough cannot exist.]

These lines were written by the poet Abdur Rahim Khankhana, one of the nine gems of Akbar’s court. What kind of resource is the poet referring to? Write in 100 words what would happen if this resource disappeared?

Answer:👇

  1. The poet is referring to the water resource.
  2. The following would happen if this resource (water resource) disappeared:
  3. The earth would dry up and it would be scorched.
  4. All human beings would die.
  5. There would be no animal life; big or small on the earth.
  6. All the vegetation types would dry up.
  7. All human activities would come to an end.
  8. No industry would exist on the surface of the earth.
  9. No activity would be seen.
  10. All the water bodies would dry up.
  11. There would no moisture in the air, no clouds, and no rains.
  12. The earth would be a big desert devoid of all elements.
  13. Actually, it will be just like a big rock.

Question 5. For Fun
Question 1. Pretend that you live in prehistoric times on a high windy plateau. What are the uses you and your friends could put the fast winds to? Can you call the wind a resource?
Answer: We cannot put the fast winds to any use. Hence, the wind cannot be called a resource.
Question 1(a). Now imagine that you are living in the same place in the year 2138. Can you put the winds to any use? How? Can you explain why the wind is an important resource now?
Answer: Yes. We can use the wind in the windmills to generate wind power. As it can be used as a power hence it has become an important resource.
Question 5(2). Pick up a stone, a leaf, a paper straw, and a twig. Think of how you can use these as resources. See the example given below and get creative

You can use a stone…

  Use/Utility

To play stapu

As a paper-weight

To crush spices

To decorate your garden/room

To open a bottle

In a catapult

toy

tool

Tool

decoration piece

tool

weapon

Answer: 


You can use a stone…

  Use/Utility

To draw a figure

As a decoration piece

To use as a spice

To make a flower pot

You can use a straw

As a fodder

A decoration piece

You can use a twig

To threaten animals

As indicator

To draw a drawing

drawing

tool

commodity

a decoration piece

Use/Utility

Food for animals

Tool

Use/Utility

punishing rod

tool

tool

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 संसाधन 

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अभ्यास 

1. निम्नलिखित प्रश्नों के उत्तर दीजिए-

i) पृथ्वी पर संसाधन आसमान रूप से क्यों वितरित है?

उत्तर: प्राकृतिक संसाधनों का वितरण भूभाग, जलवायु और ऊंचाई जैसे विभिन्न कारकों पर निर्भर करता है। ये कारक पृथ्वी और संसाधनों के वितरण में भिन्न होते हैं।

ii) संसाधन संरक्षण क्या है?

उत्तर: संसाधनों का सावधानीपूर्वक उपयोग करना और उन्हें नवीनीकृत होने का समय देना संसाधन संरक्षण है।

iii) मानव संसाधन महत्त्वपूर्ण क्यों है?

उत्तर: मानव संसाधन महत्वपूर्ण हैं क्योंकि वे अपने ज्ञान, कौशल और प्रौद्योगिकी की मदद से अधिक संसाधन बनाने के लिए प्रकृति का सबसे अच्छा उपयोग करते हैं।

iv) सततपोषणीय विकास क्या है? 

उत्तर: सतत विकास संसाधनों का सावधानीपूर्वक उपयोग है जो वर्तमान की आवश्यकताओं को पूरा करने में मदद करता है और भविष्य की पीढ़ियों के लिए भी विकास का ख्याल रखता है।

2. सही उत्तर पर निशान लगाइए -

(i) निम्नलिखित में से कौन संसाधन को निर्धारित नहीं करता है?

(क) उपयोगिता 

(ख) मूल्य 

(ग) मात्रा 

(ii) निम्नलिखित में से कौन-सा मानव निर्मित संसाधन है?

(क) कैंसर उपचार की औषधियाँ 

(ख) झरने का जल 

(ग) उष्णकटिबंधीय वन 

(iii ) कथन पूरा कीजिए -

जैव संसाधन ---- होते है। 

(क) जीव-जंतुओं से व्युत्पन्न 

(ख) मनुष्य द्वारा निर्मित 

(ग) निर्जीव वस्तुओं से व्युत्पन्न 

3. निम्नलिखित में अंतर स्पष्ट कीजिए -

(i) संभाव्य और वास्तविक संसाधन 

उत्तर:

संभाव्य  संसाधन

वास्तविक संसाधन

1. संभावित संसाधन वे संसाधन हैं जिनके लिए पूरी मात्रा ज्ञात नहीं है।


2. उन्हें विकसित करने के लिए प्रौद्योगिकी या वित्त की अनुपलब्धता के कारण वर्तमान में उनका उपयोग नहीं किया जा रहा है।


3. उदाहरण: लद्दाख में यूरेनियम, राजस्थान में तेज हवाएं।


1. वास्तविक संसाधन वे संसाधन हैं जिनके लिए मात्रा ज्ञात है।


2. मौजूदा तकनीक के साथ वर्तमान में उनका उपयोग किया जा रहा है।


3. उदाहरण: जर्मनी, झारखंड, ओडिशा की रुहर घाटी में समृद्ध कोयला भंडार; पश्चिम एशिया में पेट्रोलियम; महाराष्ट्र के डेक्कन ट्रैप में काली मिट्टी।

(ii) सर्वव्यापक और स्थानिक संसाधन  

उत्तर:

सर्वव्यापक  संसाधन 

  स्थानिक संसाधन

1. सर्वव्यापी संसाधन वे संसाधन हैं जो हर जगह पाए जाते हैं।


2. उदाहरण: भूमि, जल, वायु।


1. केवल कुछ स्थानों पर पाए जाने वाले संसाधनों को स्थानीयकृत संसाधन कहा जाता है।


2. उदाहरण: लौह अयस्क, तांबा, बॉक्साइट, सोना, आदि।

👉CLICK HERE FOR QUIZ OF THIS CHAPTER इस अध्याय की प्रश्नमंजूषा के लिए यहाँ क्लिक करें👈

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