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Dhruv from na, Udaipur
Subject :NSO    Class : Class 6

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sai ramakrishna GUDIMETLA  from AMM MATRICULATION HIGHER SECONDARY SCHOOL, Chennai
Subject :NSO    Class : Class 4

Ans 1:

Mannat Verma from Vivek High School , Chandigarh
Class : Class 6
Thanx sir

Ans 2:

ABHAY AGARWAL from ,
Class : Class 3
thank u kind sir

Ans 3:

Admin from Revisewise, Noida
Class : Class 3
Answer: B

II and IV

Solution:
As per the equation of photosynthesis -X is carbon dioxide, Y is chlorophyll and Z is oxygen.
I is incorrect because carbon dioxide constitutes only 0.04% of atmosphere and III is incorrect because oxygen gas does not turn lime water milky.

Ans 4:

PRANSHU AGRAWAL from The Jain International School, Bilaspur
Class : Class 6
thanks sir

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dhruv nigam from ckc jhansi, Jhansi
Subject :NSO    Class : Class 7

Ans 1:

from , Mumbai
Class : Class 7

Ans 2:

Aditya kumar from Sapphire International School, Noida
Class : Class 8
Its "b" as in parachutes all the angles formed by ropes are equal and mid rope is connected to the center of it. So here is no center and angle is not equal

Ans 3:

Archi Mangla from Mohters Global School, Dehi
Class : Class 7
B MUST BE THE ANSWER

Ans 4:

Reetam Dan from Delhi Public School Sector 19 Faridabad Haryana india, Faridabad
Class : Class 9

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Aarush from Podar, Mumbai
Subject :NSO    Class : Class 4

Ans 1:

sai ramakrishna GUDIMETLA  from AMM MATRICULATION HIGHER SECONDARY SCHOOL, Chennai
Class : Class 5
option B

Ans 2:

suresh kumar reddy Guddili from ,
Class : Class 4
A

Ans 3:

Parth from St Stephens School, Chandigarh
Class : Class 5
option D

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Aarush from Podar, Mumbai
Subject :NSO    Class : Class 4

Ans 1:

Prisha from Podar International School Thane, Thane
Class : Class 5
Option (D) because land cools faster than the sea.

Ans 2:

Pratham Jain from Clara Global School, Pune
Class : Class 4
c

Ans 3:

sai ramakrishna GUDIMETLA  from AMM MATRICULATION HIGHER SECONDARY SCHOOL, Chennai
Class : Class 5
option D

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Aarush from Podar, Mumbai
Subject :NSO    Class : Class 4

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Subpotent Ermine from Sharada Mandir School, Goa
Subject :NSO    Class : Class 6

Ans 1:

Ishir Jha from Gyan Ganga Global Academy, Rosera
Class : Class 8
i think this is wrong

Ans 2:

Shweta Garg from Vibgyor high, Vadodara
Class : Class 8
this is a wrong question (approved by NASA)

Ans 3:

Arav Gupta from St Stephens School, Chandigarh
Class : Class 4
yes

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Mohamed Raahil from NMEIS, Riyadh
Subject :NSO    Class : Class 3

Ans 1:

Devang Sharma from Modern school, Kota
Class : Class 8
flowers turn into fruit

Ans 2:

Sreenath from BLUEBELLS SCHOOL INTERNATIONAL, New Delhi
Class : Class 5

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Aditya Pradhan from SAI INTERNATIONAL SCHOOL, Bhubaneswar
Subject :NSO    Class : Class 5

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Ammu from kkm, Trivandrum
Subject :NSO    Class : Class 3

Ans 1:

Admin from Revisewise, Noida
Class : Class 3
The hardest substance in our body is Enamel, so X is Enamel. The Pulp in our teethis soft and bears blood vessels and nerves, so Y is Pulp. Hence the answer is B.

Ans 2:

Dr Indu V Raj from Nirmala Matha Central School Eastfort, Thrissur, Thrissur
Class : Class 3
Pulp cavity

Ans 3:

Admin from Revisewise, Noida
Class : Class 3
The hardest substance found in our body is Enamel so X is Enamel. The pulp in our teeth is soft and bears blood vessels and nerves so Y is Pulp.

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