National Science Olympiad Forum By SOF Olympiad Trainer - Page 104

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Subject :NSO    Class : Class 4

Ans 1: (Master Answer)

Class : Class 1
The correct answer is D.

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Subject :NSO    Class : Class 4

Read the given flow chart showing energy conversion and identify P - S.



             P ------------- Q ------------- R ------------- S
ACar ----- Solar cooker ---- Windmill ----- Walking
BFan ----- Mango tree ----- Car ----- Sleeping
CMicrowave ----- Radio ----- Climbing ----- Reading
DBulb ----- Grass ----- Hydroelectricity ----- Running


How in case of fan electrical energy is converted to light and in case of sleeping chemical energy is converted to kinetic

Ans 1:

Class : Class 5
the correct answer is d

Ans 2:

Class : Class 4
d

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Subject :NSO    Class : Class 4

Refer to the given diagram and select correct examples of X, Y and Z resources of energy.
             X                Y                    Z
A Petroleum       Coal                Hydro energy
B Solar energy    Natural gas       Coal
C Tidal energy    Petroleum         Nuclear energy
D Coal               Nuclear energy    Petroleum


not understanding please clarify

Ans 1:

Class : Class 4
I am fine . bro!

Ans 2:

Class : Class 5
the answer is b

Ans 3:

Class : Class 4
hi how are u

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
correct answer is a

Ans 2:

Class : Class 4

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Subject :NSO    Class : Class 4

Select the option that correctly compares clothes made from natural and synthetic fibres.

-------Clothes made of natural fibres---------Clothes made of synthetic fibres
AQuick drying-------------------------------------Slow drying
BNon-porous---------------------------------------Porous
CBiodegradable------------------------------------Non-biodegradable
DNon-waterproof----------------------------------Waterproof


Is this answer correct? Option D is correct as per system!

Ans 1:

Class : Class 8

Ans 2:

Class : Class 7
NO,D IS WRITE ANSWER

Ans 3:

Class : Class 4

Ans 4:

Class : Class 8
I too think C. is the correct answer.

Ans 5:

Class : Class 9
Option C is the correct ans

Ans 6:

Class : Class 8
But why is (C) the correct option?

Ans 7:

Class : Class 4
I think C is the right ans

Ans 8:

Class : Class 9
c is correct

Ans 9:

Class : Class 4
C

Ans 10:

Class : Class 5
C is the correct answer

Ans 11:

Class : Class 7
C is also correct.So option should be C and D.

Ans 12:

Class : Class 7
c I correct

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
answer c is correct because broccoli is a flower but what a you are saying is wrong because potato is a stem not a root

Ans 2:

Class : Class 5
C.BROCCOLI-FLOWER

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Subject :NSO    Class : Class 4

Read the given passage carefully.
Houseflies go through stages in their life cycle. The housefly lays hundreds of eggs at a time. Each egg hatches to produce a young one called a . The larva of a housefly is called . After some days, the larva becomes barrel-shaped. It is now called a . The pupa is covered by a . The e breaks open in a week and a young housefly comes out.Select the option which correctly fills any three blanks.

Aa - four ,     c - nymph ,     d - cocoon
Bb - larva ,    d - pupa ,       e - cocoon
Ca - three ,     b - larva ,      d - pupa
Dc - maggot ,  d - pupa ,     e - nymph


Ans 1:

Class : Class 5
correct answer is b, because he has asked to fill any 3 blanks with correct option.

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
option B

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 10
it is such an easy question .why are you asking us ?

Ans 2:

Class : Class 9

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Subject :NSO    Class : Class 4

Ans 1:

Class : Class 5
B , because Q and R are plant eaters and T and S are animal eaters. Others are both plant and animal eaters

Ans 2:

Class : Class 5
option B

Ans 3:

Class : Class 4
A

Ans 4:

Class : Class 4
option d

Ans 5:

Class : Class 5
D

Ans 6:

Class : Class 5
option C

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