National Science Olympiad Forum By SOF Olympiad Trainer - Page 756
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Param Bande from Sri Sri Ravishankar Vidya Mandir, Pune
Subject :NSO    Class : Class 5

Ans 1:

kartavya from Doon International Public School, Ahemdabad
Class : Class 5
Pavilion cristatus

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adwaita from DPS NOIDA, Noida
Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Admin from revisewise, Noida
Class : Class 1
The factors of 90 are 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90. Hence, the correct answer is D.

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adwaita from DPS NOIDA, Noida
Subject :NSO    Class : Class 4

Ans 1:

Srijata Biswas from Delhi Public School Newtown, Kolkata
Class : Class 9
[A] i and ii

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Naresh Likhar from AECS-4 mumbai, Mumbai
Subject :NSO    Class : Class 5

Ans 1:

Yug Agrawal from A.M.Naik School, Mumbai
Class : Class 5

Ans 2:

Naresh Likhar from AECS-4 mumbai, Mumbai
Class : Class 7
Answer is C

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Snehil Sinha from DELHI PUBLIC SCHOOL, Jamshedpur
Subject :NSO    Class : Class 3

Ans 1:

RIDHIMA AGARWAL from dps noida, Noida
Class : Class 4
15/24

Ans 2:

mahati putta from cornerstone public school , Hyderabad
Class : Class 3
Total there are 12 squares and each one is into two parts, so total 24. among those unshaded are 15, so the answer is 15/24

Ans 3:

MAYANK from Jain Public School, REWARI
Class : Class 9

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ANMOL SWARUP SAHOO from ST MARYS SCHOOL NTPC KANIHA DEEPSHIKHA, TALCHER
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

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

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Saswat Mahapatra from St. Francis School, Ghaziabad
Subject :NSO    Class : Class 7

Ans 1: (Master Answer)

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

Ans 2:

vansh mishra from doha modern indian school, doha
Class : Class 7

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Harsh from D.A.V.PUBLIC SCHOOL PATIALA, Patiala
Subject :NSO    Class : Class 6

Ans 1:

JUGAAJYOTI DASH from Doon International School, Bhubaneswar
Class : Class 9
The length of the shadow increases in afternoon.

Ans 2:

Naman from Svm, Nalasopara
Class : Class 6
only 1/2 was given❗❗❗❗❗❗❗😒😒

Ans 3:

ramesh datta from DPS dwarka , New Delhi
Class : Class 7
answer should be b (iv only) because at noon the shadow is the shortest and at early morning and evening the shadow is the longest

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Anshuman Pradhan from Gitanjali Devashray , Hyderabad
Subject :NSO    Class : Class 8

Ans 1:

Bhavya Sheth from Bright Day School, Vadodara
Class : Class 6
(D) Radiation Pressure As a comet approaches the inner solar system, solar radiation causes the volatile materials in the comet to vapourize and stream out of nucleus, carrying away dust. the streams of dust and gas thus released form a tail. and since the radiation are towards the comet from one direction and the tail could not repel the radiation, and pointing away from the sun due to the radiation. -Asita Sheth, class8

Ans 2:

Ridhi Goyal from DAV Public School, Ludhiana
Class : Class 9
due to radiation pressure

Ans 3:

Bhavya Sheth from Bright Day School, Vadodara
Class : Class 6
(D) Radiation Pressure As a comet approaches the inner solar system, solar radiation causes the volatile materials in the comet to vapourize and stream out of nucleus, carrying away dust. the streams of dust and gas thus released form a tail. and since the radiation are towards the comet from one direction and the tail could not repel the radiation, and pointing away from the sun due to the radiation. -Asita Sheth, class8

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Anshuman Pradhan from Gitanjali Devashray , Hyderabad
Subject :NSO    Class : Class 8

Ans 1:

Shreya Bajpai from St Josephs Girls H S School , Bhopal
Class : Class 9
they are some viruses that can even kill bacteria

Ans 2:

jainitf3 from MAHATMA MONTESSORI SCHOOL (CBSE) , Madurai
Class : Class 8
c

Ans 3:

Bhavya Sheth from Bright Day School, Vadodara
Class : Class 6
(C)a virus which uses bacteria as a host This microorganism is a virus also known as a BACTERIOPHAGE.

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