National Science Olympiad Forum By SOF Olympiad Trainer

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Subject :NSO    Class : Class 5

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 9

Read the given statements and select the option that correctly identifies them as true (T) and false (F) ones.
I. Downy mildew in plants is caused by fungi.
II. Chlamydomonas and Fucus are unicellular algae whereas Polysiphonia and diatoms are multicellular.
III. Virus contains both DNA and RNA as genetic material.
IV. Citrus canker is a bacterial disease that is highly contagious.

A
B
C
D


A virus has both DNA and RNA. Please correct it.

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 6

Ans 1:

Class : Class 6
d

Ans 2:

Class : Class 6
d

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Subject :NSO    Class : Class 6

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Subject :NSO    Class : Class 5

Sania had to prepare a list of voluntary actions of body. By mistake, she wrote some involuntary actions also in the list. Pick out the involuntary actions from the list prepared by Sania, shown below.
(i) Chewing food
(ii) Sitting upright on a table
(iii) Digestion of food
(iv) Beating of heart
(v) Singing a song
(vi) Dancing
(vii) Breathing

A(i), (iii) and (v) only
B(iii), (iv) and (vii) only
C(ii), (iii) and (vi) only
D(v) and (vii) only


Ans 1:

Class : Class 5

Ans 2:

Class : Class 5
b

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 8

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