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301.

An earthquake can cause building to be damaged. Then how can siesmograph stay by measuring without getting damaged?

Answer» An earthquake can cause building to be damaged. Then how can siesmograph stay by measuring without getting damaged?
302.

In which state is the Sambhar Lake located?

Answer»

In which state is the Sambhar Lake located?


303.

derive the 3 equations of rotational motio

Answer» derive the 3 equations of rotational motio
304.

Process of extraction of metals from minerals

Answer»

Process of extraction of metals from minerals

305.

The sun's angular dimeater is measured is to be 1920°. The distance D of the sun from the earth is 1.496×10^11m. Find the diameter of the sun?

Answer» The sun's angular dimeater is measured is to be 1920°. The distance D of the sun from the earth is 1.496×10^11m. Find the diameter of the sun?
306.

What is meant by sericulture?

Answer»


What is meant by sericulture?



307.

What is the meaning of term deviation?What is solar concentrator?

Answer» What is the meaning of term deviation?
What is solar concentrator?
308.

Why is solar energy more important in India?

Answer»

Why is solar energy more important in India?

309.

एक ही सब्ज़ी या फल के नाम अलग-अलग स्थान पर अलग-अलग होते हैं। नीचे ऐसे कुछ नाम दिए गए हैं। सीताफल कांदा बटाटा अमरूद तोरी शरीफ़ा काशीफल बैंगन नेनुआ तरबूज कुम्हड़ा घीया • बताओ कि तुम्हारे घर, शहर या कस्बे में इनमें से कौन-कौन से शब्द इस्तेमाल किए जाते हैं? • बाकी नामों का इस्तेमाल किन-किन स्थानों पर होता है? पता करो।

Answer»

एक ही सब्ज़ी या फल के नाम अलग-अलग स्थान पर अलग-अलग होते हैं। नीचे ऐसे कुछ नाम दिए गए हैं।






















सीताफल



कांदा



बटाटा



अमरूद



तोरी



शरीफ़ा



काशीफल



बैंगन



नेनुआ



तरबूज



कुम्हड़ा



घीया




• बताओ कि तुम्हारे घर, शहर या कस्बे में इनमें से कौन-कौन से शब्द इस्तेमाल किए जाते हैं?



• बाकी नामों का इस्तेमाल किन-किन स्थानों पर होता है? पता करो।

310.

What organic material is formed from decaying leaves and other plant material?

Answer»

What organic material is formed from decaying leaves and other plant material?



311.

What is NDRF? What are their responsibilities?

Answer» What is NDRF? What are their responsibilities?
312.

In what ways would you prevent the noise pollution.

Answer»

In what ways would you prevent the noise pollution.

313.

Ear plugs should be used by:

Answer»

Ear plugs should be used by:


314.

No room to swing a cat means

Answer»

No room to swing a cat means


315.

Name the instrument which measures the wind speed. [1 MARK]

Answer»

Name the instrument which measures the wind speed. [1 MARK]

316.

Balancing the need to use resources and conserving them for the future is called

Answer»

Balancing the need to use resources and conserving them for the future is called


317.

Which of the following has not been a victim of Eutrophication?

Answer»

Which of the following has not been a victim of Eutrophication?


318.

The radius of the turn of a road is 50m. The width of the road is 10m. Its outer edge is 0.15m higher than the inner edge. For which speed of the vehicle running over the road this banking is ideal?

Answer» The radius of the turn of a road is 50m. The width of the road is 10m. Its outer edge is 0.15m higher than the inner edge. For which speed of the vehicle running over the road this banking is ideal?
319.

The following two common words are used in a different sense in the poem. Guess what they mean bark compass

Answer»

The following two common words are used in a different sense in the poem. Guess what they mean









bark compass


320.

The ratio of cocoon to silk obtained by sericulture is

Answer»

The ratio of cocoon to silk obtained by sericulture is



321.

Which of the following is the primary source of energy?

Answer»

Which of the following is the primary source of energy?



322.

Q. आग्नेय चट्टान के संदर्भ में, निम्नलिखित कथनों पर विचार कीजिए:नीचे दिए गए कूट में से सही उत्तर का चयन कीजिए;

Answer»

Q. आग्नेय चट्टान के संदर्भ में, निम्नलिखित कथनों पर विचार कीजिए:



नीचे दिए गए कूट में से सही उत्तर का चयन कीजिए;



323.

A _______ is a set of ordered pairs.

Answer»

A _______ is a set of ordered pairs.


324.

Fill in the blanks with the proper words.(a) The propagation of sound does not occur through a ........... .(b) Noise pollution is a .......... issue.(c) The sound which is disagreeable to the ears is called..... .(d) Noise has adverse effects on our .......... .

Answer» Fill in the blanks with the proper words.

(a) The propagation of sound does not occur through a ........... .

(b) Noise pollution is a .......... issue.

(c) The sound which is disagreeable to the ears is called..... .

(d) Noise has adverse effects on our .......... .
325.

The original home of the gypsies was

Answer»

The original home of the gypsies was


326.

What is an earthquake and what causes it? [3 MARKS]

Answer»

What is an earthquake and what causes it? [3 MARKS]

327.

What does the underlined preposition indicate? They emigrated from Germany to India last week.

Answer»

What does the underlined preposition indicate?

They emigrated from Germany to India last week.


328.

List five products we get from forests.

Answer» List five products we get from forests.
329.

What is biogas?

Answer»

What is biogas?
330.

'पद्माकर' के काव्य में अनुप्रास की योजना अनूठी बन पड़ी है।' उक्त कथन को प्रथम पद के आधार पर स्पष्ट कीजिए।

Answer» 'पद्माकर' के काव्य में अनुप्रास की योजना अनूठी बन पड़ी है।' उक्त कथन को प्रथम पद के आधार पर स्पष्ट कीजिए।
331.

Tick thecorrect answer.(i)Which does the term population distributionrefer to? (a) How population in a specified area changes over time. (b) The number of people who die in relation to the number of people born in a specified area. (c) The way in which people are spread across a given area. (ii)Which are three main factors that cause population change? (a) Births, deaths and marriage (b) Births, deaths and migration (c) Births, deaths and life expectancy (iii)In 1999, the world population reached (a) 1 billion (b) 3 billion (c) 6 billion (iv)What is a population pyramid? (a) A graphical presentation of the age, sex composition of a population. (b) When the population density of an area is so high that people live in tall buildings. (c) Pattern of population distribution in large urban areas.

Answer»

Tick the
correct answer.


(i)
Which does the term population distribution
refer to?














(a) How
population in a specified area changes over time.




(b) The number of people who die in relation to
the number of people born in a specified area.



(c) The way in which people
are spread across a given area.




(ii)
Which are three main factors that cause population change?














(a) Births,
deaths and marriage



(b) Births, deaths and
migration



(c) Births, deaths and life
expectancy




(iii)
In 1999, the world population reached












(a) 1
billion



(b) 3 billion



(c) 6 billion




(iv)
What is a population pyramid?















(a) A graphical presentation of the age, sex composition of a
population.




(b) When the population density of an area is so high that people
live in tall buildings.



(c) Pattern of population
distribution in large urban areas.


332.

पापा को वायुयान चालक बनने की सूझी। इसके बाद उन्होंने अभिनेता बनने की सोची। इसके अलावा वह जहाज़ी भी बनना चाहते थे। ऊपर के वाक्यों में उन्होंने और वह का इस्तेमाल पापा की जगह पर हुआ है। हम अक्सर एक ही शब्द को दोहराने की बजाय उसकी जगह किसी दूसरे शब्द का इस्तेमाल करते हैं। मैं, तुम, इस भी ऐसे ही शब्द हैं। (क) पाठ में से ऐसे शब्दों के पाँच उदाहरण छाँटो। (ख) इनकी मदद से वाक्य बनाओ।

Answer»

पापा को वायुयान चालक बनने की सूझी। इसके बाद उन्होंने अभिनेता बनने की सोची। इसके अलावा वह जहाज़ी भी बनना चाहते थे।



ऊपर के वाक्यों में उन्होंने और वह का इस्तेमाल पापा की जगह पर हुआ है। हम अक्सर एक ही शब्द को दोहराने की बजाय उसकी जगह किसी दूसरे शब्द का इस्तेमाल करते हैं। मैं, तुम, इस भी ऐसे ही शब्द हैं।



(क) पाठ में से ऐसे शब्दों के पाँच उदाहरण छाँटो।



(ख) इनकी मदद से वाक्य बनाओ।

333.

A few lakes in a metropolitan city start to become green in colour. Considering that there are numerous high raised apartments and housing complexes near these lakes, what could be the reason for the water turning green and why

Answer» A few lakes in a metropolitan city start to become green in colour. Considering that there are numerous high raised apartments and housing complexes near these lakes, what could be the reason for the water turning green and why
334.

Land degradation is a growing concern globally. In the light of Delhi Declaration 2019, examine the threat of Land Degradation in India, also highlight measures to be taken by the government in this regard.

Answer»

Land degradation is a growing concern globally. In the light of Delhi Declaration 2019, examine the threat of Land Degradation in India, also highlight measures to be taken by the government in this regard.
335.

What are the major properties of a system at equilibrium which do not remain constant?

Answer» What are the major properties of a system at equilibrium which do not remain constant?
336.

Name an application where alloying is used as a mode of corossion prevention?

Answer»

Name an application where alloying is used as a mode of corossion prevention?

337.

Smog is generally seen in

Answer»

Smog is generally seen in


338.

काबुलीवाले को सब्ज़ी बेचने वाली की भाषा अच्छी तरह समझ नहीं आती थी। इसलिए उसे अपनी बात समझाने में बड़ी मुश्किल हुई। चलो, देखते हैं तुम अपनी बात बिना बोले अपने साथी को कैसे समझाते हो? नीचे लिखे वाक्य अलग-अलग पर्चियों मे लिख लो। एक पर्ची उठाओ। अब यह बात तुम्हें अपने साथी को बिना कुछ बोले समझानी है– 1. मुझे बहुत सर्दी लग रही है। 2. बिल्ली दूध पी रही है, उसे भगाओ। 3. मेरे दाँत में दर्द है। 4. चलो, बाज़ार चलते हैं। 5. अरे, ये तो बहुत कड़वा है। 6. चोर उधर गया है, चलो उसे पकड़ें। 7. पार्क में चलकर खेलेंगे। 8. मुझे डर लग रहा है। 9. उफ़ ये बदबू कहाँ से आ रही है। 10. अहा! लगता है कहीं हलवा बना है।

Answer»

काबुलीवाले को सब्ज़ी बेचने वाली की भाषा अच्छी तरह समझ नहीं आती थी। इसलिए उसे अपनी बात समझाने में बड़ी मुश्किल हुई। चलो, देखते हैं तुम अपनी बात बिना बोले अपने साथी को कैसे समझाते हो? नीचे लिखे वाक्य अलग-अलग पर्चियों मे लिख लो। एक पर्ची उठाओ। अब यह बात तुम्हें अपने साथी को बिना कुछ बोले समझानी है–



1. मुझे बहुत सर्दी लग रही है।



2. बिल्ली दूध पी रही है, उसे भगाओ।



3. मेरे दाँत में दर्द है।



4. चलो, बाज़ार चलते हैं।



5. अरे, ये तो बहुत कड़वा है।



6. चोर उधर गया है, चलो उसे पकड़ें।



7. पार्क में चलकर खेलेंगे।



8. मुझे डर लग रहा है।



9. उफ़ ये बदबू कहाँ से आ रही है।



10. अहा! लगता है कहीं हलवा बना है।

339.

Conversion of 109677/cm into metres

Answer» Conversion of 109677/cm into metres
340.

what is entities in Mole Concept ?

Answer» what is entities in Mole Concept ?
341.

Civil law includes

Answer»

Civil law includes


342.

Fill in the blanks. (a) Plants satisfy man’s basic needs for ………… , ………… and ………… . (b) ………… and ………… are the organic constituents of soil. (c) Land should be ………… to prevent erosion. (d) Disturbance of the natural balance of soil is called soil ………… . (e) The government has started the ………… project to protect forests.

Answer»

Fill in the blanks.



(a) Plants satisfy man’s basic needs for ………… , ………… and ………… .



(b) ………… and ………… are the organic constituents of soil.



(c) Land should be ………… to prevent erosion.



(d) Disturbance of the natural balance of soil is called soil ………… .



(e) The government has started the ………… project to protect forests.



343.

Which of the following events can cause earthquake? (1) Movement of earth's plates (2) Volcanic eruption (3) Underground nuclear eruption.

Answer»

Which of the following events can cause earthquake?
(1) Movement of earth's plates
(2) Volcanic eruption
(3) Underground nuclear eruption.


344.

Explain the process of carbonisation. [2 MARKS]

Answer»

Explain the process of carbonisation. [2 MARKS]

345.

What do the underlined prepositions indicate? The map which would have led us to the treasure lay beneath the huge rock. The three of us met at the main gate.

Answer»

What do the underlined prepositions indicate?

The map which would have led us to the treasure lay beneath the huge rock.

The three of us met at the main gate.


346.

What is Q's profession?

Answer» What is Q's profession?

347.

What is global warming? How it is harmful?

Answer»

What is global warming? How it is harmful?

348.

We should not use earphones continuously because

Answer»

We should not use earphones continuously because


349.

Apart from methane, biogas is essentially a mixture of which other gas?

Answer»

Apart from methane, biogas is essentially a mixture of which other gas?


350.

The energy produced by splitting an atom into two is called ____ energy.

Answer»

The energy produced by splitting an atom into two is called ____ energy.