National Science Olympiad Forum By SOF Olympiad Trainer - Page 494

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 6
Ans is A because W is bud and from bud a flower comes after a few days the flower turns into a fruit and fruits bear seeds.

Ans 2:

Class : Class 5

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 7

Ans 1:

Class : Class 9

Ans 2:

Class : Class 7
OPTION D IS MISSING! IT CAN BE BOTH A

Ans 3:

Class : Class 10
I think option d is missing and it might be both a and b as both of them r correct

Ans 4:

Class : Class 7
Option D is missing!!! And Option A and B can also be the answer as both of them are correct. The options in the question itself is an error as there is no option D!

Ans 5:

Class : Class 9

Ans 6:

Class : Class 4

Ans 7:

Class : Class 7
A and B both r correct so they should make option D as both A and B even there is no option D so ya possible

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Subject :NSO    Class : Class 7

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 5
it is a piece of cake

Ans 2:

Class : Class 8
very tricky

Ans 3:

Class : Class 9
The correct answer is D

Ans 4:

Class : Class 5
It is very tricky question.

Ans 5:

Class : Class 3
D

Ans 6:

Class : Class 7
What a tricky question!

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 9
D

Ans 2:

Class : Class 3

Ans 3:

Class : Class 8

Ans 4:

Class : Class 6

Ans 5:

Class : Class 2

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Subject :NSO    Class : Class 3

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Subject :NSO    Class : Class 3

Ans 1:

Class : Class 6
I thinks it should be heart. As lungs are connected with the heart not kidney.

Ans 2:

Class : Class 5
I think it should be heart not kidney

Ans 3:

Class : Class 3

Ans 4:

Class : Class 6
Heart

Ans 5:

Class : Class 5
Answer is D because both lungs n kidney are in Exetery system

Ans 6:

Class : Class 3

Ans 7:

Class : Class 8
i think heart is correct answer. please elaborate, how come kidney is right answer a

Ans 8:

Class : Class 5

Ans 9:

Class : Class 6
lungs and spinal cords are part of nervous system so lungs and kidney are part of excretory system(lungs dispose co2 from body)

Ans 10:

Class : Class 5
spinal cord connects every organ to brain an

Ans 11:

Class : Class 3
I think both kidneys and hearth are correct. beacause lungs are in respiratory,curculatory and excretory system as they help us to brathe ,make pure blood and also the blood goes from hearth then lungs and then all parts. Plese tell how hearth is wrone.

Ans 12:

Class : Class 4
It will be kidney because lungs give out carbon dioxide as waste.Heart is the wrong answer........

Ans 13:

Class : Class 3
i think brain n spinal cord are parts of nervous system whereas kidneys n lungs are part of excretory system,through lungs we inhale o2 n exhale co2,kidneys excrete urines

Ans 14:

Class : Class 5
the spi

Ans 15:

Class : Class 3
Heart is the correct answer

Ans 16:

Class : Class 3
D

Ans 17:

Class : Class 8
D because spinal cord helps brain to control the body.

Ans 18:

Class : Class 3
I think option a is also correct with option d as lungs are in curcularury system system too as the blood first goes to the lungs after the heath and then the body. Lungs also filter air and help us breathe so they are in excretory and resperatory system too. Plese tell how option a hearth is wrong .

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Subject :NSO    Class : Class 5

Ans 1:

Class : Class 8
use your brain bro

Ans 2:

Class : Class 5
You can earn badges by studying hard in sof , like doing tests, previous year papers, mock tests, etc.

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Subject :NSO    Class : Class 8

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