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ABHAY AGARWAL from ,
Subject :NSO    Class : Class 4

Ans 1:

ABHAY AGARWAL from ,
Class : Class 3

Ans 2:

Anahita Saxena from Ryan International School Pune, Pune
Class : Class 3
The Ans shud be B Carbon Dioxide. BBBBBBBBBBB

Ans 3:

somesh from Centre point katol road, Nagpur
Class : Class 6
It is CNG

Ans 4:

Tanirika Bansal from DPS Faridabad, Faridabad
Class : Class 4
CFCS should be correct answer but I got it right

Ans 5:

Adit Aggarwal from Vibgyor High, Bengaluru
Class : Class 5
The answer was supposed to be CFC .

Ans 6:

Shaurya Veer from Army Public School ASC C and C , Bangalore
Class : Class 10
The correct answer should be CFC

Ans 7:

BV Karthikeya from Sentia, Hyderabad
Class : Class 6

Ans 8:

Mehvish Khursheed from DPSGV, ghaziabad
Class : Class 5
correct answer is CFC

Ans 9:

SAURISH from R.N. Podar, Mumbai
Class : Class 10
THE OPTION SHOULD HAVE BEEN CFC OR WE CAN TAKE THE OPTION D [NITROGEN] BUT IT IS SHOWING WRONG

Ans 10:

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

Ans 11:

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

Ans 12:

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

Ans 13:

SRISANTH from Edify, Tirupathi
Class : Class 5
Actually it is b ,as a is CNG(compressed natural gas which is a energy source that is not a greenhouse gas

Ans 14:

Deepika from Vibgyor high, Mumbai
Class : Class 1
It should be CFCS

Ans 15:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
I think the answer should be CFC but it is not in the options only.But I also think that it is CO2.

Ans 16:

Rehaan Sejwal from Gyan Bharati school, Delhi
Class : Class 7

Ans 17:

BV Karthikeya from Sentia, Hyderabad
Class : Class 6
I GOT IT CORRECT

Ans 18:

Nishchita from Gems Modern Academy , Dubai
Class : Class 8
The answer is B as when we use electricity fuel gets burnt and so it produces carbon dioxide.

Ans 19:

Anika S Kumar from Alphabets International school , Chennai
Class : Class 7
Chloro-fluro-carbon

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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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APOORVA.GUPTA from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

SHANTANU from STELLA MARIS INTER COLLEGE, Lucknow
Class : Class 5
Ans is GLASS,PLASTIC(option C)

Ans 2:

RAHUL SINHA from D.A.V Public Koyla Nagar Dhanbad, dhanbad
Class : Class 7
Option c.is the answer

Ans 3:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Chill Man the answer is C.

Ans 4:

Riya shushil from Dps bangalore north , Bangalore
Class : Class 3

Ans 5:

ranak sharma from Cambridge Court World School, Jaipur
Class : Class 5
The answer is not C as it is written solvent - solute = Solution it is saying solvent MINUS solute

Ans 6:

SHANTANU from STELLA MARIS INTER COLLEGE, Lucknow
Class : Class 5
Ans is GLASS,PLASTIC(option C)

Ans 7:

anika from St Joseph sen sec school Mahoba, Kulpahar
Class : Class 5
the answer is C. and you are very gadha and foolish .

Ans 8:

Suryansh solanki from St Joseph co Ed school, Bhopal
Class : Class 4
Ans c

Ans 9:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
C

Ans 10:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
c

Ans 11:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
C C C the answer is CPlease give a yesif you agree with me

Ans 12:

DIPANWITA MAITI from SPINGDALES SCHOOL PUSA ROAD, New Delhi
Class : Class 9
Come on yaar, it's option C

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APOORVA.GUPTA from DPS Noida, Noida
Subject :NSO    Class : Class 4

Ans 1:

Naitik from Delhi Public School Noida, Noida
Class : Class 4
ans is d

Ans 2:

Bhavni Oberoi from Amity International School, Visakhapatnam
Class : Class 4
Solute-solvent is not a solution there is a huge difference

Ans 3:

SAI KRISHNA from SHISHYA BEML PUBLIC SCHOOL, BANGALORE
Class : Class 3
charukhanthan in c it is - in d it is so ans is d

Ans 4:

Daksh Jain from Deens Academy, Bangalore
Class : Class 4
c is minus and d is plus

Ans 5:

G Sai krishiv raju from Delhi public school, Hyderabad
Class : Class 7
d

Ans 6:

S K Charukhanthan from KV, Bangalore
Class : Class 6
C and D is same how could they do like thissssssssssssssss?????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????///

Ans 7:

anika from St Joseph sen sec school Mahoba, Kulpahar
Class : Class 5
my ans is d my darling

Ans 8:

AARAV AGRAWAL from BIRLA DIVYA JYOTI, SILIGURI
Class : Class 8
D

Ans 9:

Midhuna from ABCD, Banglore
Class : Class 3
Correct answer is D because solvent and solute gives solution

Ans 10:

Mohhika Sharma from Delhi Public School Greater Noida, Greater Noida
Class : Class 7
There is so less difference in both 'C' and 'D'.I think they should make more difference, but in level 2,they will trick you, no matter what.The questions will come like this only.Good Luck Everyone!

Ans 11:

Sashriti Das from Delhi Public School Bangalore North, Bangalore
Class : Class 5
D

Ans 12:

RITASHREE ROY from VMS JOKA, KOLKATA
Class : Class 8
the answer is d because solute and soluvent together form solution

Ans 13:

Ashwak from Cambridge, Jalandhar
Class : Class 9
d

Ans 14:

Ashwak from Cambridge, Jalandhar
Class : Class 9
Sorry, my first one was misprinted .. I am telling you the correct explanation of the question ---- In C it is written solvent - solute = solution but you see in D it is written solvent solute = solution …….Hence, option D is correct!!!!!

Ans 15:

Ashwak from Cambridge, Jalandhar
Class : Class 9
In C it is written solvent - solute =solution but in D it is written solvent solute = solution . So the correct answer is D .

Ans 16:

Advika Narkar from The Shishukunj International School, Jhalaria Campus, Indore
Class : Class 8
ans is Dplease agreeeveryone seethe ans is D

Ans 17:

Satvik Agrawal from Delhi Public School, bhopal
Class : Class 5
d

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Sarthak Gupta from DPS, Haryana
Subject :NSO    Class : Class 4

Ans 1:

Koyel Biswas from Adamas World School, Kolkata
Class : Class 5

Ans 2:

Malavya Chaturvedi from Study Hall, Lucknow
Class : Class 8
Answer is C

Ans 3:

Saarth Agrawal from Podar International School , Mumbai
Class : Class 6
c

Ans 4:

SHAH HITANSH JINESH from S H KHARAWALA, AHMEDABAD
Class : Class 8
The Answer is C. NOW THE QUESTION IS HOW? THE ANSWER IS THE MACHINES SHOWN IN PICTURE A,B,D RUNS BY MUSCULAR . FORCE. THE OPTION C RUNS BY MOTOR.

Ans 5:

PRAGWANSH JENA from DELHI PUBLIC SCHOOL, Raipur
Class : Class 8

Ans 6:

Bharghavi V from Vedavalli vidyalaya senior secondary school , Walajapet
Class : Class 4
C auto motor other we should ride

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Sayantan from Whitefiels Global School, Bangalore
Subject :NSO    Class : Class 4

Ans 1:

RAHUL SINHA from D.A.V Public Koyla Nagar Dhanbad, dhanbad
Class : Class 7
Rotation causes day and night. While revolution causes change in season.

Ans 2:

Prathamesh from Gopals Garden High School, Mumbai
Class : Class 4
Rotation of earth causes day and night and change of seasons.

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Sayantan from Whitefiels Global School, Bangalore
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

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

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Sarthak Gupta from DPS, Haryana
Subject :NSO    Class : Class 4

Ans 1:

Santina Suzanne from owis, bangalore
Class : Class 4
a because brain to spinal cord to nerves

Ans 2:

Vihaan Nair from Ambassador School, DUBAI
Class : Class 8
d

Ans 3: (Master Answer)

Admin from revisewise, Noida
Class : Class 1

Ans 4:

Aarav Gupta from TSRS Aravali, Gurugram
Class : Class 7
d

Ans 5:

Rajat mokashe from podar international school , Parbhani
Class : Class 4
d

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Sarthak Gupta from DPS, Haryana
Subject :NSO    Class : Class 4

Ans 1:

Rajat mokashe from podar international school , Parbhani
Class : Class 4
c

Ans 2:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 8

Ans 3:

SWARIT JAIN from DPS Greater Noida, GREATER NOIDA
Class : Class 9
Rajat mokashe IS CORRECTC IS THE ANSWER

Ans 4:

Ahaan Mittal from Primus Public School, Bengaluru
Class : Class 8

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