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Asked/Added Questions From NCERT:


Question 1. Asked on :04 August 2019:11:07:10 AM

Which non-metal is also known as black lead?

-Added by Himanshi Verma General Knowledge » Science

Answer:

Khushi Chauhan

 Graphite is also known as black lead .

-Answered by Khushi Chauhan On 17 August 2019:05:48:53 PM


Question 2. Asked on :12 July 2019:06:32:02 PM

How to obtained coal gas ?

-Added by Nishant Nishant Science » Science

Answer:

nisha sheikh

 coal gas , gaseous mixture -mainly methane , carbon monodioxide and hydrogen- formed by the destructive distillation of bituminous fuel and used as a fuel. sometime steam is added to react with a hot coke, thus increasing the yield of gas.

-Answered by nisha sheikh On 13 July 2019:07:34:09 PM


Question 3. Asked on :06 May 2019:08:20:15 AM

 भोजन के लाभ लिखो 

-Added by rocki kumar Science » Science

Answer:

Sonu kumar

 ऐसा कोइ भी पदार्थ जो शर्करा (कार्बोहाइड्रेट), वसा, जल तथा/अथवा प्रोटीन से बना हो और जीव जगत द्वारा ग्रहण किया जा सके, उसे भोजन कहते हैं। जीव न केवल जीवित रहने के लिए बल्कि स्वस्थ और सक्रिय जीवन बिताने के लिए भोजनकरते हैं। भोजन में अनेक .

-Answered by Sonu kumar On 06 May 2019:08:30:14 AM


Question 4. Asked on :05 May 2019:08:09:48 AM

FULL form CFC 

-Added by rocki kumar Science » Science

Answer:

Hitesh kumar

 Chlorofluorocarbon(CFC) is any of various halocarbon compounds consisting of carbon, hydrogen, chlorine, and fluorine. CFC were once used widely as aerosol propellants and refrigerants.Chlorofluorocarbons are believed to cause depletion of the atmospheric ozone lay

-Answered by Hitesh kumar On 05 May 2019:08:18:33 AM


Answer:

Hitesh kumar

** भारत के राज्य और उनकी राजधानी **-----------------------------------------------------

1. बिहार - पटना

2. पश्चिम बंगाल - कोलकाता

3. असम - दिसपुर

4. आंध्रप्रदेश - अमरावती (new),  हैदराबाद (old)

5. उड़ीसा - भुवनेश्वर

6. उत्तर प्रदेश - लखनऊ

7. कर्नाटक - बंगलौर

8. केरल - तिरुवनन्तपुरम्

9. गुजरात - गांधीनगर

10. जम्मू-कश्मीर - श्रीनगर

11. तमिलनाडु - चेन्नई

12. त्रिपुरा - अगरतल्ला

13. नागालैंड - कोहिमा

14. पंजाब - चंडीगढ़

15. हरियाणा - चंडीगढ़

16. मणिपुर - इम्फाल

17. मध्यप्रदेश - भोपाल

18. महाराष्ट्र - मुंबई

19. मेघालय - शिलांग

20. राजस्थान - जयपुर

21. हिमाचल प्रदेश - शिमला

22. सिक्किम - गंगटोक

23. मिजोरम - आइजॉल

24. अरुणाचल प्रदेश - ईटानगर

25. गोवा - पणजी

26. उत्तराखंड - देहरादून

27. छत्तीसगढ़ - रायपुर

28. झारखंड - रांची

29. तेलंगाना - हैदराबाद

केंद्रशासित राज्य और उसकी राजधानी 

1.दिल्ली - नई दिल्ली

2. लक्षद्वीप - कवारत्ती

3. दमन और दीव - दमन

4. अंडमान-निकोबार - पोर्ट ब्लेयर

5. चंडीगढ़ - चंडीगढ़

6. पुदुचेरी - पुदुचेरी

7. दादर व नगर हवेली - सिलवासा

Share with your friends..........श्रीराम कोचिंग, सीकर

अमरावती

-Answered by Hitesh kumar On 05 May 2019:08:20:43 AM


Question 6. Asked on :05 May 2019:07:55:51 AM

कृषि की हानियाँ 

-Added by rocki kumar Science » Science

Answer:

Sonu kumar

 Jan 18, 2018 - तुफैल इदरीसी अमेठी: भारतीय कृषि जैविक केंद्र गाजियाबाद देश में एक बहुत बड़ी क्रांति लाने में सफल हुए हैं आज जहां किसान महंगे रासायनिक खाद कीटनाशक आदि का उपयोग करते-करते अपने खेत की मिट्टी को अनुपजाऊ कठोर और जहरीला बना ...

-Answered by Sonu kumar On 06 May 2019:08:31:46 AM


Question 7. Asked on :04 May 2019:10:30:18 AM

कृषि के फायदे क्या है

-Added by Hitesh kumar Science » Science

Answer:

Hitesh kumar

 इस भाग में संरक्षण खेती के फायदे की जानकारी दी गई है। ... का गिरना, भू-जलस्तर में गिरावट, कृषि मजदूरों में कमी व कृषि आयातों की बढ़ती कीमतों की वजह से पारम्परिक खेती के अन्तर्गत उत्पादन खर्च में वृद्धि व शुद्ध मुनाफे में कमी हो रही है।

-Answered by Hitesh kumar On 05 May 2019:08:26:53 AM


Question 8. Asked on :04 May 2019:10:25:23 AM

 फलफ कितने प्रकार के होते है

-Added by Hitesh kumar Hindi » Science

Answer:

Sonu kumar
your question have no answers

-Answered by Sonu kumar On 06 May 2019:08:44:15 AM


Question 9. Asked on :04 May 2019:09:55:15 AM

 What is the name of  reproduction  in which fusion of male and female gametes takes place ?  

-Added by Prince Rawat Science » Science

Answer:

rocki kumar

 Fusioiplon. During sexual reproduction, a male and female gamete will merge together to form a new organism. The two haploid cells will fuse together to form a did cell called a zygote.

-Answered by rocki kumar On 04 May 2019:10:01:56 AM


Question 10. Asked on :04 May 2019:09:53:12 AM

 What are two modes by which animals reproduce?


-Added by Prince Rawat Science » Science

Answer:

rocki kumar

 Some simple animals, many of whom are single celled, reproduce asexually. The different modes of asexual reproduction in animals include gemmules (sponges),fragmentation (planarians), regeneration (echinoderms) and parthenogenesis (ants, wasps

-Answered by rocki kumar On 04 May 2019:10:03:42 AM


Question 11. Asked on :03 May 2019:10:24:23 AM

कोशिका क्या  है

-Added by ravi varma Science » Science

Answer:

sonu kumar

 कोशिका (Cell) सजीवों के शरीर की रचनात्मक और क्रियात्मक इकाई है और प्राय: स्वत: जनन की सामर्थ्य रखती है। यह विभिन्न पदार्थों का वह छोटे-से-छोटा संगठित रूप है जिसमें वे सभी क्रियाएँ होती हैं जिन्हें सामूहिक रूप से हम जीवन कहतें हैं

-Answered by sonu kumar On 03 May 2019:10:29:20 AM


Question 12. Asked on :03 May 2019:08:39:26 AM

प्रकाश की परिभाषा दीजिये?

-Added by Hitesh kumar Science » Science

Answer:

ravi varma

 यह एक प्रकार की ऊर्जा है जब प्रकाश हमारी आँख की रेटिना पर पड़ता है तो इसके रेटिना पर गिरने से दृष्टि संवेदना उत्पन्न होती है और हमें वस्तुएं दिखाई देती है। प्रकाश ...

-Answered by ravi varma On 03 May 2019:10:07:11 AM


Question 13. Asked on :03 May 2019:08:33:34 AM

 वास्पीकरण किसे कहते है ?

-Added by Hitesh kumar Science » Science

Answer:

ravi varma

 किसी तत्त्व या यौगिक का द्रव अवस्था से गैस अवस्था में परिवर्तन वाष्पीकरण (Vaporization या vaporisation) कहलाता है। वाष्पीकरण दो प्रकार का होता है- वाष्पन, तथा क्वथन। इन्हें भी देखें[संपादित करें]. वाष्पन (evaporation); क्वथन · संघनन · ऊर्ध्वपातन.

-Answered by ravi varma On 03 May 2019:10:15:48 AM


Answer:

sonu kumar

 क्या सभी जीवों को एक ही किस्म के भोजन की आवश्यकता होती है? Answer: नही, सभी जीवों को एक ही किस्म के भोजन की आवश्यकता नही होती है विभिन्न तरह के जीवों को विभिन्न तरह के भोजन कि आवश्यकता होती है। जैसे: शाकाहारी जीव 

-Answered by sonu kumar On 03 May 2019:10:27:39 AM


Question 15. Asked on :02 May 2019:10:09:06 AM

समांगी और विस्मांगी में अन्तर स्पस्ट कीजिए  

-Added by ravi varma Science » Science

Answer:

priyanshu kumar

  समांगी मिश्रण : ऐसे मिश्रण जिसमें दो या दो से अधिक अवयव उपस्थित होते हैं किंतु उंहें अलग-अलग देखा नहीं जा सकता उन्हें समांगी मिश्रण कहते हैं। उदाहरण : नमक और पानी का मिश्रण. विषमांगी मिश्रण : ऐसे मिश्रण जिनमें दो या दो से ...

-Answered by priyanshu kumar On 02 May 2019:10:56:10 AM


Question 16. Asked on :26 April 2019:08:19:47 AM

 

-Added by Sohail alam Science » Science


Question 17. Asked on :22 April 2019:03:57:11 PM

 What is carbon 

-Added by Sohail alam Science » Science

Answer:

Sonu kumar

 Carbon is a chemical element, like hydrogen, oxygen, lead or any of the others in the periodic table. Carbon is a very abundant element. It exists in pure or ...

-Answered by Sonu kumar On 02 May 2019:10:23:55 AM


Question 18. Asked on :22 April 2019:03:55:52 PM

 Write three elements of gases


-Added by Sohail alam Science » Science

Answer:

Khushi Chauhan

 Elements of gases are hydrogen, helium, nitrogen, oxygen, neon, fluorine etc.  

-Answered by Khushi Chauhan On 17 August 2019:05:44:08 PM


Question 19. Asked on :22 April 2019:03:55:00 PM

 What is force

-Added by Sohail alam Science » Science

Answer:

Sonu kumar

 What is force? This definition explains what force is in the physical sciences and discusses its properties.

-Answered by Sonu kumar On 02 May 2019:10:29:27 AM


Question 20. Asked on :22 April 2019:03:51:55 PM

What do you mean by growth hormone  

-Added by Sohail alam Science » Science

Answer:

sonu kumar

 tation agriculture is a form of commercial farming where crops are grown for profitLarge land areas are needed for this type of agricultureCountries that have plantation agriculture usually expePlanrience high annual temperatures and receive high annual rainfallPlantation agriculture as mentioned above was introduced ...

-Answered by sonu kumar On 06 May 2019:10:32:15 AM


Question 21. Asked on :19 April 2019:03:56:08 PM

 what do you mean by tilling 


-Added by Sohail alam Science » Science

Answer:

Himanshi Verma

 Tillage is the agricultural preparation of soil by mechanical agitation of various types, such as digging, stirring, and overturning. Examples of human-powered tilling methods using hand tools include shovelling, picking, mattock work, hoeing, and raking. ... "Tillagecan also mean the land that istilled.

-Answered by Himanshi Verma On 21 April 2019:11:14:18 AM


Question 22. Asked on :15 April 2019:02:28:01 PM

Name the unit in which calorific  value of a fuel is expressed 

-Added by Sohail alam Science » Science

Answer:

priyanshu kumar

  The calorific value of fuel is the amount of heat produced by the complete combustion of 1 kg of fuel. Hence, the calorific value of the fuel is 40,000 kJ/kg.

-Answered by priyanshu kumar On 17 April 2019:08:56:27 AM


Question 23. Asked on :13 April 2019:09:10:31 PM

 धवनी की तीव्रता किसमें नापा जाता है ?

-Added by Master Purushottam General Knowledge » Science

Answer:

Himanshi Verma

 ध्वनि की तीव्रता या पबलता डेसीबल में मापी जाती है। डेसीबल यानी बल का दसवां भाग एक भौतिक इकाई है जो सबसे हल्की ध्वनि पर आधरित होती

-Answered by Himanshi Verma On 15 April 2019:04:21:07 PM


Question 24. Asked on :13 April 2019:03:39:27 PM

what do you mean by Virus

 

-Added by Sohail alam Science » Science

Answer:

Nitish kumar

 A computer virus is a malicious software program loaded onto a user's computer without the user's knowledge and performs malicious actions. ... It can self-replicate, inserting itself onto other programs or files, infecting them in the process. Not all computer viruses are destructive though

-Answered by Nitish kumar On 16 April 2019:08:27:07 AM


Question 25. Asked on :09 April 2019:09:43:42 AM

 Name the bacterium present in the nodules of the roots pf leguminous plants which fixes atmosphere nitrogen.


-Added by Prince Rawat Science » Science

Answer:

Hitesh kumar

  Root nodules are found on the roots of plants, primarily legumes, that form a symbiosis with nitrogen-fixing bacteria. Under nitrogen-limiting conditions, capable plants form a symbiotic relationship with a host-specific strain of bacteria known as rhizobia.

-Answered by Hitesh kumar On 20 April 2019:10:03:03 AM


Question 26. Asked on :25 March 2019:03:59:09 PM

Q.what are microoorganism ?

-Added by Nishant verma Science » Science

Answer:

priyanshu kumar

 A microorganism is any living organism like bacteria, protozoa, or even fungi that cannot be seen with the naked eye. Microorganisms can only be viewed through a microscope and are extremely important to plant life, plant health, and soil composition.

-Answered by priyanshu kumar On 17 April 2019:08:55:24 AM


Question 27. Asked on :23 March 2019:04:35:20 PM

 Q. State difference between manure and fertilizer?

-Added by Shruti Srivastva Science » Science

Answer:

Himanshi Verma

 Fertiliser : 

1.) A fertiliser is an inorganic salt. 

2.) A fertiliser is prepared in factories. 

3.) A fertiliser does not provide any humus to the soil. 

4.) Fertilisers are very rich in plant nutrients like nitrogen, phosphorus and potassium. 


Manure : 

1.) Manure is a natural substance obtained by the decomposition of cattle dung, human waste and plant residues. 

2.) Manure can be prepared in the fields. 

3.) Mqnure provides a lot of humus to the soil. 

4.) Manure is relatively less rich in plant nutrients. 

-Answered by Himanshi Verma On 25 March 2019:04:28:56 PM


Question 28. Asked on :23 March 2019:04:30:53 PM

 Q. 

-Added by Shruti Srivastva Science » Science


Question 29. Asked on :22 March 2019:04:54:54 PM

 What is critical Angle? 

-Added by Rohit rajput Physics » Science

Answer:

Himanshi Verma

 The angle of incidence in a denser medium for which the angle of refraciton in rarer medium becomes 90° is called the critical angle.

-Answered by Himanshi Verma On 23 March 2019:05:32:30 PM


Question 30. Asked on :15 February 2019:03:37:07 PM

 What is conservation of energy? with example .

-Added by khushi chauhan Science » Science

Answer:

Himanshi Verma

 The law of conservation of energy states that energy can neither be created nor be destroyed, but it can be transformed from one form to another. So I considered an example of it as follows: water is stored at height with potential energy, the water flows and its potential energy is converted into kinetic energy.

-Answered by Himanshi Verma On 16 February 2019:05:30:10 PM


Question 31. Asked on :03 February 2019:10:47:35 AM

When baking soda is mixed with lemon juice, bubbles are formed with evolution of a gas. What type of change is it ?

-Added by Nishant Verma Science » Science

Answer:

Himanshi Verma

  When baking soda is mixed with lemon juicebubbles formed because of evolution of carbon dioxide gas. This is a chemical change, because in this reaction new substances are formed. Question 5: When a candle burns, both physical and chemical changes take place.

-Answered by Himanshi Verma On 03 February 2019:04:03:50 PM


Question 32. Asked on :21 January 2019:04:35:59 PM

 Full Form Of VIBYOR

-Added by khushi chauhan Home Science » Science

Answer:

Akki chauhan

  VIBGYOR stands for Violet, Indigo, Blue, Green, Yellow, Orange, Red. VIBGYOR is a mnemonic used to remember the order of seven colors in the spectrum of white light. The white light is a mixture of different colors. The order of colors in white light arranged from shortest wavelength to longest is called VIBGYOR, the visible spectrum of light. 

-Answered by Akki chauhan On 05 February 2019:09:54:39 AM


Question 33. Asked on :21 January 2019:09:53:45 AM

 which is element most hardest in the world ?

-Added by Akki chauhan Science » Science

Answer:

Himanshi Verma

 Diamond is the hardest naturally occurring substance found on Earth. But it is not the hardest substance. Wurtzite boron nitride (synthetic) and lonsdaleite (which comes from meteorites) are both harder.


-Answered by Himanshi Verma On 21 January 2019:05:25:34 PM


 

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