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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

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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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

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


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Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Subject :NSO    Class : Class 8

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

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)

Admin from revisewise, Noida
Class : Class 1

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:

Anoushka Anbu from Amara Jyoti Public School, Bengaluru
Class : Class 8

Ans 2:

Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Class : Class 8
It signifies crop rotation.

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

Ans 1:

Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Class : Class 8
The answer is option 'A'.

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kshitij from st anslem senior secondary school, Jaipur
Subject :NSO    Class : Class 7

Ans 1:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
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.

Ans 2:

Pisal Dhruv from Veer Bhagat Singh International School, Mumbai
Class : Class 7
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:

Anirudh from Kendriya Vidyalaya Kanjikode, Palakkad
Class : Class 8
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.

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kshitij from st anslem senior secondary school, Jaipur
Subject :NSO    Class : Class 7

Ans 1:

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

Ans 2:

Dheeraj from Sri Sri Ravishankar Vidya Mandir, Bangalore
Class : Class 7
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:

Smita De from Bishop Cotton Girls School, BANGALORE
Class : Class 6
explanation

Ans 2:

Bhavtosh Tripathi from Maneckji Cooper Education Trust School, Mumbai
Class : Class 7
B

Ans 3:

Kanishk Mukherjee from BDM International, Kolkata
Class : Class 6

Ans 4:

Manvi Mundepi from Montfort School Roorkee, Roorkee
Class : Class 8
EXPLAIN

Ans 5:

Rishab from OWS, New Delhi
Class : Class 7

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

Ans 1:

Praneeth from Null, Null
Class : Class 7
Option B

Ans 2:

Vatsal Narwal from Sun Valley International School, Ghaziabad
Class : Class 7
The third picture(option A) may be the answer.

Ans 3:

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

Ans 4:

A Andriya from Lalaji Memorial Omega International School, Chennai
Class : Class 7
option b . the third picture is the answer

Ans 5:

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

Ans 6:

Vatsal Narwal from Sun Valley International School, Ghaziabad
Class : Class 7
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 7:

Praneeth from Null, Null
Class : Class 7
Option B

Ans 8:

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

Ans 9:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 7
hmmmm

Ans 10:

A Andriya from Lalaji Memorial Omega International School, Chennai
Class : Class 7
option b . the third picture is the answer

Ans 11:

Hamsavarshini Swaminathan from St Anns Senior Secondary School, Roorkee
Class : Class 7

Ans 12:

Sarthak yadav from RPS, mahendergarh
Class : Class 6
hmm...............answer from my knowlege is B

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