National Science Olympiad Forum By SOF Olympiad Trainer - Page 840

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Subject :NSO    Class : Class 4

Ans 1:

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 2:

Class : Class 4
MARS

Ans 3:

Class : Class 7
d

Ans 4:

Class : Class 5
D: sunflower and marigold

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
Jammu and Kashmir option D

Ans 2:

Class : Class 3
a

Ans 3:

Class : Class 3
Kashmir

Ans 4:

Class : Class 7
Option D) Jammu and Kashnir

Ans 5:

Class : Class 6
Jammu and Kashmir

Ans 6:

Class : Class 5
Jammu and Kashmir.

Ans 7:

Class : Class 5
D

Ans 8:

Class : Class 3
a. kerela

Ans 9:

Class : Class 7
not KERALA for sure! its KASHMIR

Ans 10:

Class : Class 8
Option D Jammu & kashmir

Ans 11:

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.

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Oxygen

Ans 2:

Class : Class 3
Algae , 5 million years ago

Ans 3:

Class : Class 3
Skin

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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 5:

Class : Class 7
B to perform photosynthesis

Ans 6:

Class : Class 3
Burning gases of helium and hydrogen

Ans 7:

Class : Class 3
To perform photosynthesis

Ans 8:

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

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Physiologist

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 7
Carbon Dioxide

Ans 6:

Class : Class 7
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
Water Plants were the first plants to evolve on earth. We found found them about 3 billion years ago.

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 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 8
d.Mangrove

Ans 2:

Class : Class 5
Mangrove

Ans 3:

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

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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 8
When Colombus landed in America thinking that was India,he called them Red Indians because of their skin colour.

Ans 3:

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

Ans 2:

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

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 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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