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Akshay Kumar from BVM, Chennai
Subject :NSO    Class : Class 7

Ans 1:

Aditya Sai Vemparala from Amanora school, Pune
Class : Class 7
C

Ans 2:

Amol Athawale from WoodRidge High, Mumbai
Class : Class 7

Ans 3:

Arnav from Gyan Bharati School, New Delhi
Class : Class 7

Ans 4:

N Sankar Narahari from Madhavakripa English Nursery and Higher Primary School, Manipal
Class : Class 7
here option c holds true because in option a and b we can make an exception with pulmonary artery and vein.

Ans 5:

Amol Athawale from WoodRidge High, Mumbai
Class : Class 7

Ans 6:

Arnav from Gyan Bharati School, New Delhi
Class : Class 7
Yes, the answer is option "C". It is not true that arteries will always carry oxygenated blood and the veins will always carry deoxygenated blood (pulmonary vein and artery).

Ans 7:

Mayank Gupta from Kulachi Hansraj Model School, New Delhi
Class : Class 8

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chandra Deb from ,
Subject :NSO    Class : Class 5

Ans 1:

Pragun goel from Venkateshwar International School, Delhi
Class : Class 5
sea snakes also breathe through skin so option 1 should also be correct.

Ans 2:

Shriya Sreekrishna from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 6

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Shuvangi Das from Vivekananda mission school, haldia
Subject :NSO    Class : Class 3

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is C.

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Rio Choudhury from South Point High School, Kolkata
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
Molars and Premolars are mainly used to chew the food.

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vaibhav from , Faridabad
Subject :NSO    Class : Class 7

Ans 1:

aryan vir from lotusvalley international school gurugram, Gurgaon
Class : Class 7

Ans 2:

aryan vir from lotusvalley international school gurugram, Gurgaon
Class : Class 7

Ans 3:

aryan vir from lotusvalley international school gurugram, Gurgaon
Class : Class 7

Ans 4:

Arush from Anandi Public School, Udgir
Class : Class 3
such questions r always confusing.................

Ans 5:

Arush from Anandi Public School, Udgir
Class : Class 3

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ABHAY AGARWAL from ,
Subject :NSO    Class : Class 4

Refer to the given paragraph and table and answer the following questions.
Neha took 100 gm each of three types of soil, X, Y and Z, in three separate pots with hole at the bottom. The amount of water that was poured in the soil pot, just before it started dripping from the bottom hole, is tabulated here.

The soil that is mixture of clay, sand, humus and is usually very good for growth of most plants is __________.

A X
B Y
C Z
D Cannot be determined


Ans shd be D (Cannot be determined)

Ans 1:

ANURADHA NAIR from SANDEEPANI VIDYA NIKETHAN SCHOOL, Thrissur
Class : Class 4
B IS THE ANSWER ANURADHA NAIR 4C

Ans 2:

ABHAY AGARWAL from ,
Class : Class 3

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ABHAY AGARWAL from ,
Subject :NSO    Class : Class 4

Ans 1:

BV Karthikeya from Sentia, Hyderabad
Class : Class 4
I GOT IT CORRECT

Ans 2:

SAURISH from Podar, Mumbai
Class : Class 4
THE OPTION SHOULD HAVE BEEN CFC OR WE CAN TAKE THE OPTION D [NITROGEN] BUT IT IS SHOWING WRONG

Ans 3:

Visakha Dhar from GD Goenka, jhajjar
Class : Class 3
the correct answer is CFCs .but is not mention in the option.

Ans 4:

Adit Aggarwal from Vibgyor High, Bengaluru
Class : Class 4
The answer was supposed to be CFC .

Ans 5:

Mohammad Shahid from Dayawati Modi International Maple Bear, Modipuram, Meerut 250110, Meerut
Class : Class 4
how the released gas from refrigerator is CO2

Ans 6:

ABHAY AGARWAL from ,
Class : Class 3

Ans 7:

SRISANTH from Edify, Tirupathi
Class : Class 4
Actually it is b ,as a is CNG(compressed natural gas which is a energy source that is not a greenhouse gas

Ans 8:

Rehaan Sejwal from Gyan Bharati school, Delhi
Class : Class 5

Ans 9:

Shaurya Veer from dps, UDHAMPUR
Class : Class 4
The correct answer should be CFC

Ans 10:

Abhinav Kulkarni from National Centre For Excellence, Bengaluru
Class : Class 4
the ans should be CFC

Ans 11:

BV Karthikeya from Sentia, Hyderabad
Class : Class 4

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Jairaj Singh Basur from Vivek High School, Chandigarh
Subject :NSO    Class : Class 6

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shashwat pal from mnr school of excellence, navi mumbai
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is B.

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shashwat pal from mnr school of excellence, navi mumbai
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The correct answer is D.

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