National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
Carbon Dioxide

Ans 2:

Class : Class 3
Astronomers

Ans 3:

Class : Class 7
Carbon Dioxide is given out during photosynthesis

Ans 4:

Class : Class 5
Not carbon dioxide. The answer will be Oxygen (O2) and Water vapour (H2O)!!!

Ans 5:

Class : Class 3
Physiologist

Ans 6:

Class : Class 6
Oxygen IS THE RIGHT ANSWER.

Ans 7:

Class : Class 5
Oxygen

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Subject :NSO    Class : Class 3

Ans 1:

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

Ans 2:

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:

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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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
Mangrove

Ans 2:

Class : Class 5
Mangrove

Ans 3:

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.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
Mangrove

Ans 2:

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 3:

Class : Class 8
d.Mangrove

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Subject :NSO    Class : Class 5

Ans 1:

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 2:

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 3:

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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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 7
Sunlight, Carbon Dioxide, Water, Minerals and Chlorophyll.

Ans 2:

Class : Class 7
The required things are carbon dioxide, water, sunlight, chlorophyll and minerals

Ans 3:

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

Ans 4:

Class : Class 7
Carbon Dioxide,Water,Chlorophyll,sunlight and soil

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Subject :NSO    Class : Class 3

Ans 1:

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.

Ans 2:

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.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 6
Kilogram

Ans 2:

Class : Class 5
S.I unit of mass is kilogram and S.I unit of weight is newton

Ans 3:

Class : Class 2
Kilogram

Ans 4:

Class : Class 4
Kilogram

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 2
Carbon dioxide

Ans 2:

Class : Class 2
photosynthesis

Ans 3:

Class : Class 3
Carbon di oxide

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