National Science Olympiad Forum By SOF Olympiad Trainer - Page 899
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Parag Talsonia from DAV Public School, Jamshedpur
Subject :NSO    Class : Class 4

Ans 1:

AMBALIKAA from LOYOLA SCHOOL BHUBANESWAR, Bhubaneswar
Class : Class 7
d

Ans 2:

ISHAAN PRIYADARSHI from G D Goenka School, New Delhi
Class : Class 4
MARS

Ans 3:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
Sunflower and marigold are naturally yellow in colour. Both of them are used for making yellow dye. Thus, the worker should choose sunflower and marigold flowers for making yellow dye. Hence, the correct answer is D.

Ans 4:

mitra from dav model school, Durgapur
Class : Class 5
D: sunflower and marigold

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Parag Talsonia from DAV Public School, Jamshedpur
Subject :NSO    Class : Class 3

Ans 1:

Mohammed Zubair from Kendriya vidyalaya, Bengaluru
Class : Class 8
Option D Jammu & kashmir

Ans 2:

Kirti Dwivedi from DR AMIN, Vadodara
Class : Class 5
D

Ans 3:

Daksh Shah from Choitram School North Campus , Indore
Class : Class 3
a

Ans 4:

mitra from dav model school, Durgapur
Class : Class 5
Jammu and Kashmir option D

Ans 5:

Aavanthika.S.R from St Thomas Residential school (STRS) trivandrum kerala, Trivandrum
Class : Class 7
not KERALA for sure! its KASHMIR

Ans 6:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
Option D. Pine trees are found in the mountainous region. Among the given choices Jammu & Kashmir is a mountainous region in India, where pine trees are found.

Ans 7:

Sivanthili.sivaganesh from kamalaniketan , Trichy
Class : Class 3
Kashmir

Ans 8:

Shagun from MAXFORT DWARKA, New Delhi
Class : Class 5
Jammu and Kashmir.

Ans 9:

suchir from dehli public school miyapur, Hyderabad
Class : Class 6
Jammu and Kashmir

Ans 10:

Adithya Bharath M from Manipal School, Mangalore
Class : Class 7
Option D) Jammu and Kashnir

Ans 11:

kim from dps noida, Noida
Class : Class 3
a. kerela

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Promila Sharma from DPS Udaipur, Uaipur
Subject :NSO    Class : Class 3

Ans 1:

Sivanthili.sivaganesh from kamalaniketan , Trichy
Class : Class 3
Oxygen

Ans 2:

Sivanthili.sivaganesh from kamalaniketan , Trichy
Class : Class 3
Algae , 5 million years ago

Ans 3:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
Spines present on the cactus plant are the modified leaves. They are very tiny and do not perform photosynthesis. Photosynthesis is performed by the spongy stem of cactus. thus the correct option is B

Ans 4:

Sivanthili.sivaganesh from kamalaniketan , Trichy
Class : Class 3
Skin

Ans 5:

Ananya from Delhi Public School, Meerut
Class : Class 7
B to perform photosynthesis

Ans 6:

Sivanthili.sivaganesh from kamalaniketan , Trichy
Class : Class 3
To perform photosynthesis

Ans 7:

Sivanthili.sivaganesh from kamalaniketan , Trichy
Class : Class 3
Burning gases of helium and hydrogen

Ans 8:

Rudraksh Tiwari from Kumaon Public School Dwarahat, Almora
Class : Class 7
C Rudraksh Tiwari KPS, Dwarahat-Almora

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Ajit Basu from , Mumbai
Subject :NSO    Class : Class 3

Ans 1:

Sohum Saha from DAV Model School Durgapur, Durgapur
Class : Class 7
Carbon Dioxide

Ans 2:

mitra from dav model school, Durgapur
Class : Class 5
Not carbon dioxide. The answer will be Oxygen (O2) and Water vapour (H2O)!!!

Ans 3:

Adithya Bharath M from Manipal School, Mangalore
Class : Class 7
Oxygen IS THE RIGHT ANSWER.

Ans 4:

Sivanthili.sivaganesh from kamalaniketan , Trichy
Class : Class 3
Astronomers

Ans 5:

Ananya from Delhi Public School, Meerut
Class : Class 7
Carbon Dioxide is given out during photosynthesis

Ans 6:

Kirti Dwivedi from DR AMIN, Vadodara
Class : Class 5
Oxygen

Ans 7:

Sivanthili.sivaganesh from kamalaniketan , Trichy
Class : Class 3
Physiologist

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Promila Sharma from DPS Udaipur, Uaipur
Subject :NSO    Class : Class 3

Ans 1:

Ajit Basu from , Mumbai
Class : Class 3
Mangrove possess breathing roots . These plants grow in marshy areas, which have clayey soil. In clayey soil, plants face deficiency of oxygen. Thus, to obtain oxygen, their roots grow upwards. Such roots that grow upwards (away from the gravity) are called breathing roots.

Ans 2:

Ajit Basu from , Mumbai
Class : Class 3
Water Plants were the first plants to evolve on earth. We found found them about 3 billion years ago.

Ans 3:

Ajit Basu from , Mumbai
Class : Class 3
Water Plants were the first plants to evolve on earth. We found found them about 3 billion years ago.

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Ajit Basu from , Mumbai
Subject :NSO    Class : Class 3

Ans 1:

Shagun from MAXFORT DWARKA, New Delhi
Class : Class 5
Mangrove

Ans 2:

Promila Sharma from DPS Udaipur, Uaipur
Class : Class 3
Mangrove possess breathing roots . These plants grow in marshy areas, which have clayey soil. In clayey soil, plants face deficiency of oxygen. Thus, to obtain oxygen, their roots grow upwards. Such roots that grow upwards (away from the gravity) are called breathing roots.

Ans 3:

mitra from dav model school, Durgapur
Class : Class 5
Mangrove

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Ajit Basu from , Mumbai
Subject :NSO    Class : Class 3

Ans 1:

Ajit Basu from , Mumbai
Class : Class 3
Mangrove. Mangrove possess breathing roots . These plants grow in marshy areas, which have clayey soil. In clayey soil, plants face deficiency of oxygen. Thus, to obtain oxygen, their roots grow upwards. Such roots that grow upwards (away from the gravity) are called breathing roots

Ans 2:

mitra from dav model school, Durgapur
Class : Class 5
Mangrove

Ans 3:

SANKET SI from DELHI PUBLIC SCHOOL, Rourkela
Class : Class 8
d.Mangrove

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Anu Sharma from DPS Noida, Noida
Subject :NSO    Class : Class 5

Ans 1:

Anu Sharma from DPS Noida, Noida
Class : Class 2
When Columbus landed in America thinking that was India, he called them as 'Indians' or 'Red Indians' because of their skin complexion. According to the wiki references, Native Americans called their elders as 'Indians' and that remained a family name for many over generations.

Ans 2:

UVAIS ZUFAR from DON BOSCO SCHOOL OF EXCELLENCE, Chennai
Class : Class 8
When Columbus landed in America thinking that was India, he called them as 'Indians' or 'Red Indians' because of their skin complexion.

Ans 3:

Soundharya from ISWK, Muscat
Class : Class 8
When Colombus landed in America thinking that was India,he called them Red Indians because of their skin colour.

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Pawan Kumar from Army Public School, Hyderabad
Subject :NSO    Class : Class 7

Ans 1:

Roma singh from RBK Global School, Maharashtra
Class : Class 7
The required things are carbon dioxide, water, sunlight, chlorophyll and minerals

Ans 2:

Ananya from Delhi Public School, Meerut
Class : Class 7
Carbon Dioxide,Water,Chlorophyll,sunlight and soil

Ans 3:

Pawan Kumar from Army Public School, Hyderabad
Class : Class 7
Sunlight, Carbon Dioxide, Water, Minerals and Chlorophyll.

Ans 4:

from ,
Class :
It requires sunlight,water,minerals,chlorophyll,co2.... shreyash dhase from De Paul English Medium School..

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Anu Sharma from DPS Noida, Noida
Subject :NSO    Class : Class 3

Ans 1:

Promila Sharma from DPS Udaipur, Uaipur
Class : Class 3
Mangrove possess breathing roots . These plants grow in marshy areas, which have clayey soil. In clayey soil, plants face deficiency of oxygen. Thus, to obtain oxygen, their roots grow upwards. Such roots that grow upwards (away from the gravity) are called breathing roots.

Ans 2:

Anu Sharma from DPS Noida, Noida
Class : Class 2
Stars shine because they are a powerhouse of energy, with gigantic cores of fusion reaction that causes energy to be released and sent out into the universe as light.

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