National Science Olympiad Forum By SOF Olympiad Trainer - Page 786

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
The fusion of pollen and egg cell leads to the formation of seed. Fusion of pollen and egg cell results in the formation of an embryo that further develops into a seed.

Ans 2:

Class : Class 5
A: Seed

Ans 3:

Class : Class 4
Seed

Ans 4:

Class : Class 7
Option A. seed

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 7
Fir and pine are non- flowering plants. Hence, the correct option is A.

Ans 2:

Class : Class 7
D: Fern and tulsi

Ans 3:

Class : Class 7
D . FERN AND TULSI

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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
D

Ans 2:

Class : Class 8
Option D Jammu & kashmir

Ans 3:

Class : Class 3
a

Ans 4:

Class : Class 3
a. kerela

Ans 5:

Class : Class 5
Jammu and Kashmir option D

Ans 6:

Class : Class 6
Jammu and Kashmir

Ans 7:

Class : Class 5
Jammu and Kashmir.

Ans 8:

Class : Class 7
Option D) Jammu and Kashnir

Ans 9:

Class : Class 7
not KERALA for sure! its KASHMIR

Ans 10:

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 11:

Class : Class 3
Kashmir

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 3
Algae , 5 million years ago

Ans 2:

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 3:

Class : Class 3
Skin

Ans 4:

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

Ans 5:

Class : Class 3
Burning gases of helium and hydrogen

Ans 6:

Class : Class 3
Oxygen

Ans 7:

Class : Class 7
B to perform photosynthesis

Ans 8:

Class : Class 3
To perform photosynthesis

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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 5
Oxygen

Ans 4:

Class : Class 7
Oxygen IS THE RIGHT ANSWER.

Ans 5:

Class : Class 3
Physiologist

Ans 6:

Class : Class 7
Carbon Dioxide is given out during photosynthesis

Ans 7:

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

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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 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

Ans 3:

Class : Class 5
Mangrove

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
Mangrove

Ans 2:

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

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 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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