Asked/Added Questions From NCERT:

Question 1. Asked on :26 April 2019:08:19:47 AM


-Added by Sohail alam Science » Science

Question 2. Asked on :22 April 2019:03:57:11 PM

 What is carbon 

-Added by Sohail alam Science » Science

Question 3. Asked on :22 April 2019:03:55:52 PM

 Write three elements of gases

-Added by Sohail alam Science » Science

Question 4. Asked on :22 April 2019:03:55:00 PM

 What is force

-Added by Sohail alam Science » Science

Question 5. Asked on :22 April 2019:03:51:55 PM

What do you mean by growth hormone  

-Added by Sohail alam Science » Science

Question 6. Asked on :19 April 2019:03:56:08 PM

 what do you mean by tilling 

-Added by Sohail alam Science » Science


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 7. 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


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 8. Asked on :13 April 2019:09:10:31 PM

 धवनी की तीव्रता किसमें नापा जाता है ?

-Added by Master Purushottam General Knowledge » Science


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 9. Asked on :13 April 2019:03:39:27 PM

what do you mean by Virus


-Added by Sohail alam Science » Science


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 10. 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


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 11. Asked on :25 March 2019:03:59:09 PM

Q.what are microoorganism ?

-Added by Nishant verma Science » Science


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 12. Asked on :23 March 2019:04:35:20 PM

 Q. State difference between manure and fertilizer?

-Added by Shruti Srivastva Science » Science


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 13. Asked on :23 March 2019:04:30:53 PM


-Added by Shruti Srivastva Science » Science

Question 14. Asked on :22 March 2019:04:54:54 PM

 What is critical Angle? 

-Added by Rohit rajput Physics » Science


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

 What is conservation of energy? with example .

-Added by khushi chauhan Science » Science


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 16. 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


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 17. Asked on :21 January 2019:04:35:59 PM

 Full Form Of VIBYOR

-Added by khushi chauhan Home Science » Science


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 18. Asked on :21 January 2019:09:53:45 AM

 which is element most hardest in the world ?

-Added by Akki chauhan Science » Science


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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