National Science Olympiad Forum By SOF Olympiad Trainer - Page 848

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Subject :NSO    Class : Class 3

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Class : Class 3
Algae , 5 million years ago

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Class : Class 3
Oxygen

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Class : Class 7
B to perform photosynthesis

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Class : Class 3
Skin

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Class : Class 3
Burning gases of helium and hydrogen

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Class : Class 3
To perform photosynthesis

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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 8:

Class : Class 7
C Rudraksh Tiwari KPS, Dwarahat-Almora

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 7
Carbon Dioxide is given out during photosynthesis

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

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Class : Class 7
Oxygen IS THE RIGHT ANSWER.

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Class : Class 5
Oxygen

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Class : Class 7
Carbon Dioxide

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Class : Class 3
Physiologist

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Class : Class 3
Astronomers

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Subject :NSO    Class : Class 3

Ans 1:

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

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 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:

Class : Class 5
Mangrove

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Class : Class 5
Mangrove

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Subject :NSO    Class : Class 3

Ans 1:

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:

Class : Class 5
Mangrove

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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.

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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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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.

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Subject :NSO    Class : Class 7

Ans 1:

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

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

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

Ans 4:

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

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Subject :NSO    Class : Class 3

Ans 1:

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:

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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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
S.I unit of mass is kilogram and S.I unit of weight is newton

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Class : Class 6
Kilogram

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Class : Class 2
Kilogram

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Class : Class 4
Kilogram

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Carbon di oxide

Ans 2:

Class : Class 2
Carbon dioxide

Ans 3:

Class : Class 2
photosynthesis

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