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from ,
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

from ,
Class :

Chemical products derived from petroleum are called petrochemicals. Some of the major petrochemicals are acetylene, benzene, ethane, ethylene, methane, propane, and hydrogen, from which many other chemicals are derived.


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from ,
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

from ,
Class :

Full form of : LCD - Liquid Crystal Display, and LED - Light Emitting Diode 


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from ,
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

from ,
Class :

The correct answer is A.

Antonie van Leeuwenhoek is commonly known as the 'Father of Microbiology'.

 


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SHOURYA RAWAT from Venkat International Public School, BANGALORE
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

from ,
Class :

The correct answer is A.

The rate of evaporation will be the fastest in container A as the exposed surface area of water is maximum there.


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Dhruvan G from Indian School al Ghubra, Muscat
Subject :NSO    Class : Class 8

Ans 1:

from ,
Class :
It signifies crop rotation.

Ans 2:

Jayad Khaitan from St Xaviers Collegiate School, KOLKATA
Class : Class 8

Ans 3:

AASHU SINHA from fortuna shine school, purnia
Class : Class 9

Ans 4:

from ,
Class :

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Dhruvan G from Indian School al Ghubra, Muscat
Subject :NSO    Class : Class 8

Ans 1:

Gaurish Singla from DPS School Sector 19, Faridabad
Class : Class 8

Ans 2:

Sharan from Podar, Mysore
Class : Class 10

Ans 3:

Santhosh M from PSBB Millennium OMR, Chennai
Class : Class 9

Ans 4:

Ayush Pal from GD Goenka Public School Dakshineswar, West Bengal, India, Kolkata
Class : Class 8

Ans 5:

Ahdiya Sharik from St Thomas public school, Trivandrum
Class : Class 8

Ans 6:

from ,
Class :
The answer is option 'A'.

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from ,
Subject :NSO    Class : Class 7

Ans 1:

from ,
Class :
E(energy)=m(mass)*c(speed of light in vacuum)2.... speed of light in vacuum=3.00 x 108(10x10x10x10x10x10x10x10).... It means that there is much more energy stored inside the nucleus of an atom than in its valence electrons. The energy released from splitting an atom is much higher than that of breaking electron bonds.

Ans 2:

from ,
Class :
in simple terms "Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing. Under the right conditions, energy can become mass, and vice versa.

Ans 3:

from ,
Class :
E = mc2. An equation derived by the twentieth-century physicist Albert Einstein, in which E represents units of energy, m represents units of mass, and c2 is the speed of light squared, or multiplied by itself.

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from ,
Subject :NSO    Class : Class 7

Ans 1:

abhinav from fitjee world school, Hyderabad
Class : Class 8
Energy=mass*(speed of light)^2

Ans 2:

from ,
Class :
Energy=mass x mass x capacity x capacity

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Vaishnavi from Gear International School, Bengaluru
Subject :NSO    Class : Class 6

Ans 1:

Parth Kaushish from MDPS, Faridabad
Class : Class 6
b is correct if an explanation is required then click on solution

Ans 2:

A S Neeraj from K V 2, Chennai
Class : Class 6

Ans 3:

Eashta Khodke from Elpro International School Chinchwad Pune, Pune
Class : Class 8
the ans will be B as the question tells us that the opaque dot is in the center ,IN THE CENTER aka it will be same all over

Ans 4:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 9
B

Ans 5:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 6:

Pavani Soni from VYDEHI , Bengaluru
Class : Class 8

Ans 7:

Smita De from Bishop Cotton Girls School, BANGALORE
Class : Class 5
explanation

Ans 8:

Pavani Soni from VYDEHI , Bengaluru
Class : Class 8

Ans 9:

from ,
Class :

Ans 10:

Vihan agarwal from Bal Bharati Public School , Delhi
Class : Class 8
THIS IS PRETTY ADVANCED STUFF FOR KIDS OF CLASS 6

Ans 11:

Aadhira from velammal new gen school, Medavakkam, Chennai
Class : Class 6
(B) is the correct answer.

Ans 12:

Vihaan Binaykia from Riverside, AHMEDABAD
Class : Class 5
C

Ans 13:

SAMRA BISWAS from KENDRIYA VIDYALAYA BARRACKPORE AIRFORCE, BARRACKPORE
Class : Class 9
[B] is the correct answer......

Ans 14:

Aadvik saini from Mvn sector 17, Faridabad
Class : Class 8
please explain

Ans 15:

Manvi Mundepi from Montfort School Roorkee, Roorkee
Class : Class 9
EXPLAIN

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Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Subject :NSO    Class : Class 6

Ans 1:

harmit from goldcrest high, Mumbai
Class : Class 6

Ans 2:

from ,
Class :
The third picture(option A) may be the answer.

Ans 3:

Pratheek from Null, Null
Class : Class 4
Option B

Ans 4:

Krithi Manasvini from Alwin Memorial Public School, Chennai
Class : Class 7
Option b is right because Figure (iii) is periscope which is used to see around the corners. It is based upon the principle of rectilinear propagation of light and reflection of light.

Ans 5:

Anshuman Mishra from kv no 3, Bhubaneswar
Class : Class 7
to my knowledge ans is b

Ans 6:

Sarthak yadav from RPS, Mahendragarh
Class : Class 9
hmm...............answer from my knowlege is B

Ans 7:

Shreyansh Gupta from MVN, faridabad
Class : Class 7
The answer is B according to my 100000 IQ brain ez pz

Ans 8:

Anshuman Mishra from kv no 3, Bhubaneswar
Class : Class 7
to my knowledge ans is b

Ans 9:

from ,
Class :
But I don't understood one thing that 'How the item will allow me to see around a corner from where I am standing?

Ans 10:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10

Ans 11:

srivats from psbb, chennai
Class : Class 6
there are mirrors on the 3 figure so ans is option B

Ans 12:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 10
hmmmm

Ans 13:

Sai Trinayanee from NPS, Chennai
Class : Class 6

Ans 14:

A Andrew from Lalaji Memorial Omega International School, Chennai
Class : Class 8
option b . the third picture is the answer

Ans 15:

A Andrew from Lalaji Memorial Omega International School, Chennai
Class : Class 8
option b . the third picture is the answer

Ans 16:

Pratheek from Null, Null
Class : Class 4
Option B

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